There are 40 species of triggerfish found in warm, shallow coastal water or coral reefs. Largest of all is the stone triggerfish, which grows to more than 3 feet long.

When threatened, I squeeze into a hole by raising the large dorsal spine on my head. I lock this into place with a second, smaller spine behind it. Then, only I can unlock my fins!

My strong teeth allow me to eat tough food like mollusks and sea urchins. By hunting down sea urchins from coral reefs, I contribute to the better health of these corals.

I’m a clever fish that can learn from my previous experiences. I make use of rocks to break through shellfish and when kept in aquariums, I can even recognize my owners!

I do have a bit of a temper, though! Intruders, from other fish to human divers, are likely to be charged or bitten.

I’m a large vegetarian found in warm coastal waters from East Africa to Australia, northeastern India and islands of the South Pacific.

I can stay underwater for six minutes before coming up to the surface to breathe. I graze on underwater grasses, rooting for them with my sensitive snout and chomping them with my rough lips.

I spend much of my time alone or in pairs, though we sometimes gather in large herds.

There are 47 species of seahorses (15 of which were discovered just in the last decade!). Don’t let my unusual shape fool you—I’m actually a fish! Unlike most other fish, we swim upright.

It can be difficult to spot us in the wild. In addition to our small size, we are experts in camouflage, allowing us to blend into coral or seagrass. This helps us both hide from predators and sneak up on prey.

We have prehensile tails, also known as tails that can grab objects. Although it’s similar to monkey tails, they evolved independently— our scientific family are the only type of fishes who have them!

This allows us to hold onto floating seaweed or seagrass and travel much farther than we could normally swim on our own.

There are at least 114 species of butterflyfish. Almost all of us have amazing colours and patterns and we live on coral reefs throughout the world.

We mostly travel in small groups called schools, although many are solitary or live in pairs. Our favourite foods include small invertebrates such as sponges and worms. We also feed on coral polyps, algae, and plankton.

We are diurnal, which means we are active during the day and sleep at night.

Butterflyfish can change its colours automatically depending on the situation like sleep time, danger or during feeding.

Some butterflyfish have large eye-like dots near the back to confuse predators.

Although I look like a small plant, I’m actually made of tiny animals called coral polyps. Polyps are soft-bodied but secrete limestone skeletons for support and tend to form a colony that acts as one organism. These are popularly known as coral reefs.

Coral reefs are called “the rainforests of the sea” as they take up about 1% of the ocean floor, but host about 25% of all ocean species. They are also speed bumps as their structure slows down and shrinks waves protecting coastlines from hurricanes, cyclones and tsunamis.

Unfortunately, climate change, ocean acidification, diseases, overfishing, and pollution have damaged coral reefs around the world. Two species of reef-building corals - Elkhorn (Acropora palmata) and staghorn (Acropora cervicornis)- have declined almost 97% since the 1970s.

The best way we can help corals—and the animals that depend on them—is by cutting carbon emissions and limiting the effects of climate change.

Recent studies have shown that 10% of all coral reefs are dead and by 2030, 50% of all corals in the sea will be dead!

Some of the coral reefs today are over 50 million years old!

Coral reefs release chemical compounds that could be used for medicines, nutritional supplements, pesticides and more!

I’m commonly known as the bigfin reef squid or oval squid. I have a large oval fin that extends throughout the margins of my mantle, making me look like a cuttlefish.

I’m mostly found near the shoreline, near rocks, and coral reefs in the temperate and tropical waters of the Pacific and Indian Oceans. I have a short lifespan of less than 1 year but I grow really fast, reaching 600 g in only four months.

I’m a small to medium-sized squid, growing up to 33 centimetres in length. I mostly eat crustaceans like prawns and small fish.

I've been fished extensively for human consumption in Asia. Because of my rapid growth rate, short life span, and ease of living in captivity, I’m regarded as a promising species for aquaculture.

There are over 30 species of clownfish but the most popular is orange with white stripes, as seen in Finding Nemo.

I'm also called anemonefish as I live in a symbiotic relationship with sea anemones. This means that I enjoy the protection and food scraps my anemone provides, I drive off intruders and keep it clean by removing parasites. It’s a win-win situation for both!

I am found in shallow lagoons and protected coral reefs and my favorite snacks include plankton, algae and small invertebrates.

There are more than 120 species of cuttlefish found in all of the world’s oceans.

Despite my name, I’m not a fish but an intelligent invertebrate related to octopus and squid. I have smart ways to evade predators, including creating my own body double from a cloud of ink. I’m colourblind yet have advanced colour-changing abilities.

I have eight arms and two long tentacles attached directly to my head. I eat fish, crabs, prawns, smaller cuttlefish, and shrimp, using tentacles to grab and stun them with a toxic bite. My beak, located at the base of my arms, is sharp enough to break hard crab shells.

Built like a torpedo, I race through the water at speeds up to 43 miles per hour. My metallic blue colour on top and silvery white on bottom, is great camouflage and helps me hide from onlookers above and below.

We are schooling fish and like to stick together based on size. We love eating small fish, crustaceans, squid and eels.

We don’t dive too deep into the water and prefer the sunlight. We like to roam the seas and have even been tracked traveling from the Bahamas to Norway!

I’m known for my flashy claws and tasty meat but I’m much cooler than that!

I have 10 feet, of which the first two are modified into claws or chelae. The larger one is used for crushing and the smaller one for cutting prey. The other four pairs of legs are used to crawl, rather than swim.

I have a tough outer shell for protection and stability. Once I get too big for my shell, I shed it and grow a new one in a process called molting.

My brain is in my throat, I have teeth in my stomach and my heart is in my abdomen. I “taste” with my feet and “hear” using sensory hairs on my legs!

I like rocky and sandy ocean floors where I will hunt for crabs, clams, mussels, fish and sea stars. If I can’t find my favorite food, I sometimes eat plants.

I am known for my sleek, torpedo-shaped body designed for speed and endurance. I’m a really fast swimmer reaching speeds of 50 mph (80 kmph)!

I am black to dark blue in color with a yellow or silver belly. I have a crescent moon-shaped tail and two dorsal fins on my back. My dorsal fin, anal fins and finlets are bright yellow.

I am a pelagic fish, meaning I mostly live in the open sea—not near coral reefs, the sea floor, or shoreline. I travel long distances with my friends in groups called schools.

I eat small fish, crabs and squid. I am myself eaten by people around the world and am fished in large numbers.

I’m very social and often travel in large groups called pods. I’m very energetic and take high leaps out of the water. I also produce a variety of whistles, pulses, and clicks to communicate and find my food.

My favorite foods are fish, crab and squid. I have few predators once I’m an adult. Humans are my main threat. Many of us die each year after becoming entangled in fishing nets.

Although I’m called a killer whale, I prefer to be called an orca—it sounds much friendlier! I’m easy to spot in the ocean with my black and white coloring!

I’m mostly found in cold, coastal waters, but I enjoy warmer waters as well. After humans, Orcas are the most widely spread mammals in the world!

I usually hunt in deadly pods, family groups of up to 40 individuals. I’m an incredibly powerful hunter and enjoy eating fish, seals, sharks, penguins and more.

I’m an extremely social animal. I like to gather in groups called pods, which can range from just a few of my closest friends to hundreds of whales!

Unlike other whale species, the bones in my neck aren’t fused together so I can move my head up, down and side to side. I can even make different facial expressions—just like humans!

You can find me in the chilly waters of the Arctic and subarctic. I migrate south to the subarctic when Arctic waters freeze over, and return north when the ice breaks up in the spring.

I’m a good swimmer too—I can dive for 25 minutes to depths up to 800 meters. I feed on a variety of fish species, such as salmon and herring, as well as shrimp and crabs.

I’m a bony fish with a heavy body, large head, and a blunt snout. I’m able to change colour from a grey-green colour to a reddish brown!

I can live for up to 25 years and can grow up to 180 cm (70 inches) and 50 kg (110 lbs). I live in the temperate waters of the North Atlantic ocean and parts of the Arctic ocean.

I live and travel in groups. The larger fishes fill the role of a scout, and they guide the direction of the entire group while migrating.

As I'm a popular food, I’ve almost been fished to the brink of extinction. But, I’m also an important predator in the ocean. This threatens the ecosystem — since there’s not enough of me to eat enough herring, small fish, urchins, shrimp and lobsters, my prey populations expand.

I usually swim alone but occasionally travel in packs to cleaning stations to remove the parasites on my skin. I’m generally shy, but get very curious around divers.

My food of choice is jellyfish, though I also eat small fish, zooplankton and algae as well. However, I frequently suffocate on sea trash, like plastic bags, which resemble jellyfish.

Despite my name, I am no fish! I’m an invertebrate, or an animal without a backbone. I have drifted along on ocean currents for millions of years, even before dinosaurs lived on the Earth!

I have a complex life cycle and during my lifetime, I take on two different body forms. I start off as a flower-like polyp which divides to produce new polyps.

The polyps can also produce or transform into adult jellyfish, or medusa, which is the familiar umbrella-shaped form that we see in the water.

I do not possess a brain, heart, bones, or a respiratory system. I’m 95% water and contain only a basic set of nerve cells to help me sense my environment.

In my tentacles I have stinging cells to protect me and help me catch prey like plankton, crabs, fish and even other jellyfish!

I’m a cartilaginous fish with dark skin with a beautiful pearly pattern of white spots.

I have long, wing-like pectoral fins and a unique head and snout, which is broad and flat, similar to a duck's bill. I have small teeth and a very long whip-like tail with several venomous, barbed stingers.

I’m mostly found in the tropical waters of the Atlantic, Pacific, and Indian Oceans and feed on small fish and crustaceans. I can grow to around 5 metres (16 feet) in length with a wingspan of 3 metres (10 feet) and weigh up to 227 kg (500 lbs).

I’m classified as “near threatened” because of overfishing and a large number of natural predators like sharks.

I am the largest animal ever known to have lived on Earth! I am a Baleen Whale, which means that instead of having teeth I have plates in my jaw that filter food out of the water. My favorite food is tiny shrimplike animals called krill.

I have two blow-holes on the top of my large head which help me breathe.

I am found in all the oceans of the world. I mate and give birth to babies in subtropical waters during winter months and feed in polar waters during summer months.

There are 7 species of sea turtles that inhabit the Earth’s oceans: Loggerhead, Leatherback, Green turtle, Hawksbill, Kemp’s ridley, Olive ridley and Flatback.

We are found in all warm and temperate oceans throughout the world and spend most of our lives in the water. We undergo long migrations, as far as 1400 miles, between our feeding grounds and the beaches where we nest.

Only females will crawl ashore on beaches to lay their eggs. After about 60 days baby turtles hatch and scramble towards the sea.

Our diets depend on the species, but some common foods include jellyfish, seaweed, crabs, shrimp, sponges, snails, algae and mollusks.

We often become entangled in fishing nets, or accidentally eat plastic bags, so please stop polluting the ocean so that we can live in a healthy ecosystem.

I can grow to be bigger than a school bus and am also known for my acrobatics. I can use my powerful fluke, or tail fin, to launch myself out of the water.

This is called breaching, and the star attraction of whale-watching tours around the world. Scientists suspect this is a way of communicating.

We also communicate through our iconic “songs.” A song lasts less than 10 minutes, but can be repeated for hours without stopping. It is used for males to attract females during the breeding season.

I may be big, but I like my food small. I feed on tiny critters like krill, small fish and plankton. I can eat upto 3,000 pounds (1,360 kilograms) of food each day!

Humpbacks are known to have the longest annual migration of any mammal. They travel from Antarctica, across the Equator to Columbia or even Mexico.

I’m the second largest species of penguin, only smaller than the emperor penguin. The easiest way to distinguish me from the other 17 penguin species is by the splash of yellow-orange feathers on my upper chest and the teardrop-shaped patches on the sides of my head. Some other penguins boast yellow feathers too, but none so prominently as I.

I inhabit rocky islands in the northern reaches of Antarctica and small islands of South America & in South Africa. My aquatic range is in the South Atlantic, South Indian and Southern Oceans.

I can grow up to 100 cm (39 inches) tall and weigh up to 18 kg (40 lbs). I mainly eat fish (particularly - lantern fish) but also consume crustaceans such as krill and squid. I’m an epic hunter, scarfing down as many as 2,000 fish in a single day!

I’m a social animal and gather in large colonies. I often travel long distances (up to 500 km) from their breeding areas for food.

Even though I have many predators like orcas and sea lions, my biggest threats are human activity and global warming. The rise in temperatures has already caused a decline in my population!

King penguins can dive to depths as deep as the Eiffel Tower is tall.

Instead of constructing nests, King penguins just carry the incubating eggs and the chicks with them, on their feet.

During blizzards, King penguins may cuddle up to each other in order to keep warm.

Penguins cannot fly. They have water repellent feathers that are so lush, they look like fur.

The King penguin possesses a supraorbital gland, filtering excess salt from the animal's blood through the capillary above its eyes, and releasing the salt through the penguin's nose. Due to this amazing ability, the penguin is able to drink salty ocean water.

There are six sea lion species – Steller Sea Lion, California Sea Lion, South American Sea Lion, Australian Sea Lion, New Zealand Sea Lion and Galapagos Sea Lion. The seventh, the Japanese Sea Lion, is now extinct.

I’m a pinniped (fin-footed) carnivorous, semi-aquatic marine mammal. I have external ear flaps, long fore flippers, short and thick hair, and a big chest and belly. Though I have fins in place of my feet, I can walk on all fours!

I’m found in all the world’s oceans, from subarctic to tropical waters, in both the Northern and Southern Hemispheres, except in the northern Atlantic Ocean. I can grow from 4 ft (1 m) for the Galapagos Sea Lion (smallest) to almost 10 ft (3 m) for the Steller Sea Lion (largest) and weigh between 100 lb (45 kg) to 2,200 lb (1,000 kg) respectively.

I eat all kinds of food in the ocean like squids, salmon, herring, clams, sardines and even octopuses and krills!

I’m one of the rarest animals in the ocean. I’m called the “unicorn of the sea” because of my “tusk”, which is actually a tooth!

I spend my time in the frigid cold waters in and around the Arctic. I like travelling with my friends and family in groups called pods. Usually there are between 10 and 100 narwhals in a pod but it could go upto a thousand. I mostly eat fish, squid and shrimp.

Despite my name, I’m not a whale but a shark! I’m the largest fish in the world and can grow to over 40 ft (12 m) long and weigh over 20,000 lbs (9,100 kg). That is the height of two giraffes stacked on top of each other and the weight of two elephants combined!

My mouth itself is 3 ft (1m) wide and holds more than 350 rows of tiny teeth and 20 filter pads. However, don’t be afraid, I’m a gentle giant. I feed almost exclusively on plankton and small fishes and don’t harm humans.

I’m mostly found in tropical and warm temperate waters and spend most of my time away from the shore around 150 feet below the surface. I’m a filter feeder – one of only three known filter-feeding shark species (along with the basking shark and the megamouth shark).

To filter feed, I swim through the water with my mouth open and suck out plankton that are suspended in the water. In addition to plankton, I love eating squid, krill and small fish.

I’m endangered as I’m fishes for my fins, skin and oil. I’m also often caught in nets as by-catch and hit by large ships. Also, due to my filter feeding habits I’m extremely vulnerable to ingesting ocean trash especially microplastics.

I’m a deep sea fish, among the oldest species of sharks, and called a 'living fossil' due to my primitive features. I live in the deep waters of the Atlantic, Pacific, and Indian Ocean.

I have a long, slender dark brown colored body and an eel-like appearance with rough skin. I have vertical slits for nostrils and a short, rounded snout. I get my name from the six gills on either side of my body that meet at the front of my throat, giving me a ‘frilly’ appearance.

I can grow up to 2 m (6 ½ feet) long and weigh upto 90 kg (200 lbs). I have long jaws with 300 trident shaped teeth in 25 rows. My diet consists mainly of squid, octopus, bony fish, and smaller sharks.

I’m a solitary sea creature and rarely even interact with other frilled sharks.

I get my name from the long sword or bill on my face. It’s actually my upper jawbone (also called a rostral bone), which I use to stun and catch prey.

I usually hunt in deep water during the day and stay in the mixed layer at night. I feed mainly on fish but I also eat squid, shrimp and lobster.

I am a medium sized shark with a slender body, short, round snout and large eyes. I have large teeth, a strong bite and am a solitary hunter.

I feed mainly on bony fish in the deep sea but I also eat squid, octopus, shrimp, lobster and smaller sharks. Occasionally I might even scavenge or take a bite of flesh off whales and larger sharks.

I’m bioluminescent, that is they can produce light using special cells in their skin. In fact I’m the largest bioluminescent vertebrate (animal with a backbone).

Kitefin Sharks use bioluminescence to attract prey, communicate and keep predators away.

Kitefin Sharks hide from predators using counter-illumination – producing enough light to match their surroundings.

I might look scary but I’m a gentle giant. I’m one of the largest crustaceans (includes crabs, shrimp, prawns).

I’m also one of the world’s largest arthropods, animals with no backbone, external skeletons, and jointed legs (includes insects, spiders and crustaceans).

My orange-and-white body, cream-colored belly, and spiny, oval shell blends in with the rocks on the ocean floor. My long legs make me look like a spider but I have 10 legs, not eight!

I move slowly and don’t hunt. I prefer to scavenge for dead animal or plant matter, though I may also eat live fish.

They are part of a group known as decorator crabs and cover their shells with sponges or anemones for camouflage.

SCIENTIFIC NAME: Macropinna microstoma

I’m a deep-sea and get my name from my barrel-shaped eyes capped with green lenses. I also have a transparent head that fills with fluid and can direct my eyes to see upward and forward. My transparent head and green eyes help in filtering out the sunlight reaching my deep-sea habitat.

I live in mild, temperate, deep-sea waters of the Pacific, Indian, and Atlantic oceans. I grow up to 6 in (15 cm) in length and weigh up to 5 ounces (140 g). I mostly feed on jellyfish and crustaceans in the deep sea.

I’m a deepwater shark and my life is a mystery because humans hardly ever see me! I swim along slowly keeping my large mouth open sucking in small sea creatures such as plankton, shrimp, and krill. This process is called filter-feeding.

I’m covered in scales, called denticles. They are of different sizes and shapes depending on where they are on my body. Denticles protect me from sharp rocks and parasites.

I have 50 rows of teeth on my upper and lower jaws. Don’t let my large size and sharp teeth scare you, I’m a gentle giant!

I am a cephalopod, which means “head-foot”, and am related to squid and cuttlefish. We get our name because our arms are connected directly to our head.

I am the largest and longest-living of all octopus species. I’m seen at depths upto 750 m and prey on shrimp, crabs, lobsters, and fish. I sometimes even eat sharks!

Like other octopuses, I have a series of cells called chromatophores that allow me to change colors based on my surroundings and hide. Else, I try to escape by releasing a cloud of purple-black ink to confuse the enemy.

SCIENTIFIC NAME: Histioteuthis reversa
I’m also known as the cock-eye squid as the size of my eyes are dissimilar. I live in moderate depths of the Atlantic Ocean and Mediterranean Sea but have also been found in the Southern Indian Ocean.

I grow up to 20 cm (8 inches) in length and weigh up to 2 ½ kg (5 ½ lbs). My head has four pairs of robust arms, a pair of tentacles and two unequal-sized eyes. The suckers on my arms are globular, usually with teeth on the margin.

My main predators are Sperm Whales and Dolphins. I like to eat small fish, shrimp, and smaller squids. I hunt deep down in the sea, keeping one eye on prey and one on predators!

I get my name from my really thin body that resembles the blade of a hatchet. There are over 45 species of hatchetfish and I, the giant hatchetfish, am the largest.

I have large, tubular eyes that point upward. This helps me search for food falling from the above. Because there is very little light where I live, my eyes have become extremely sensitive to light.

SCIENTIFIC NAME: Teuthowenia megalops
I’m also known as the Atlantic Cranch Squid and am a moderately sized squid found in the subarctic and temperate waters of the Atlantic Ocean. I get my name Megalops from my really large eyes, which also contain 3 bioluminescent organs or photophores on them.

Females are much larger reaching mantle lengths of 16 inches (40 cm) as compared to 10 inches (25 cm) for males. I spend most of my time in deep waters but also exhibit diel vertical migration (DVM), moving closer to the surface in nighttime and diving deeper during daytime.

I am the largest of the toothed whales and am easily recognized by my massive head. I have the largest brain of any creature to have lived on Earth.

I eat thousands of pounds of fish and squid each day and can dive as deep as 3,280 feet (1,000 meters) in search of food. I can hold my breath for up to 90 minutes on such dives.

I have one blowhole on the left of my forehead that acts as nostrils and allows me to get air into my lungs to breathe.

We stick together. As many as 20 of us sperm whales travel together in groups called pods. Pods are mostly made up of females and their young; males prefer to roam solo.

I may look bizarre but I’m one of the most popular creatures of the deep. I have a very large mouth with sharp, fang-like teeth. My ferocious appearance has earned me the nickname "common black devil".

I get my name from my spine that is elongated to form a light-producing lure. I can remain completely motionless, waving my lure back and forth like a fishing pole. This attracts unsuspecting prey and when they get close enough, I snap them up with my powerful jaws and swallow them whole. My sharp teeth are angled inwards, which also prevents them from escaping.

I can extend both my jaw and stomach to an incredible size, allowing me to swallow prey twice the size of my body. Since food can be scarce in the deep sea, this special adaptation allows me to stock up on food during times of plenty.

I look like something that swam straight out of a science fiction movie! I have large fins at the top of my body which help me travel through the water by flapping these fins. Like other squid, I can also use jet propulsion to move by expelling water through a specialised syphon jet located just under my mantle.

I have a very gelatinous form, resembling a jellyfish more than a squid. My eight arms are connected with a webbing of skin, which makes me look more like an octopus than a squid.

When threatened, I draw my arms up over myself and form a defensive web that covers my body. My arms are lined with suction cups and soft, fleshy spines known as cirri. It is these spines, along with the cape-like webbing and red eyes that give me my unusual name!

My body is covered with light-producing organs called photophores. This gives me the unique ability to "turn myself on or off" at will through a chemical process known as bioluminescence.

I have incredible control over these light organs and I can even modulate their size and intensity to create complex patterns to disorient predators and attract prey. When the photophores are off, I’m completely invisible in the dark waters where I live.

SCIENTIFIC NAME: Chauliodus sloani
I’m an uncommon-looking, deep-sea fish, found in tropical and temperate waters of the Atlantic, Pacific and Indian Oceans. I’m a fierce hunter easily recognised by my large mouth and sharp teeth. In fact, my teeth are so huge that they don't even fit inside the mouth!

I can also unhinge my jaw and Its jaw can be unhinged, allowing me to open my mouth up to 90° and catch prey up to 63% of my own body size!

I grow to about 24 in (60 cm) and weigh around ½ oz (15 g). My favourite food is the lanternfish though I may eat other fish or crustaceans.

SCIENTIFIC NAME: Nemichthyidae
I belong to a family of eels that consist of 9 different species. Different species of snipe eel have different shapes, sizes and colours.

We all have very slender jaws that separate toward the tips as the upper jaw curves upward. They appear similar to the beak of the snipe bird which gives us our name!

I’m found in almost all of the world's oceans between depths of 300 to 600 m (1,000 to 2,000 ft). I may reach up to 2 m (79 in) in length but weigh only 80 to 400 g (3 to 14 oz)! I generally eat small crustaceans but scientists believe my diet includes small fish and squids too!

Not much is known about me but whatever is known comes from specimens caught by research vessels trawling at midwater depths.

SCIENTIFIC NAME: Phronima Sedentaria

I am an amphipod (Greek – amphi: both/all sides; poda: feet) crustacean found in temperate, subtropical, and tropical waters of all the world's oceans.

I usually inhabit the ocean depths up to 1,000 m (3,300 ft) but often migrate all the way up to the surface. Females of my species grow to lengths of 42 mm (1 ½ in) while males are much smaller at 15 mm (½ in) long.

I am most active during the night when I feed on zooplankton, krill and other tiny crustaceans. Also, it helps me escape predators like lancetfish, squids, pomfret and tuna.

I have been called the ugliest fish in the world but that’s only when I’m in shallow water! This ugly, almost frightening appearance resembles a gelatinous older man whose face has begun to melt.

However, I don’t look that way in my natural habitat and am just like a regular fish. The extreme pressure of the ocean depths, which is up to 120 times higher than at the surface, holds me together. At the surface I encounter a rapid pressure drop, which causes me to turn into a gooey mess.

Like many deep-sea fish, I feed on invertebrates as well as carrion that falls to the seafloor. My mouth is big and I can consume bigger creatures such as crabs, mollusks, and sea urchins. At the same time, though, I also end up consuming garbage like plastics, which can kill me!

I am known for my unique appearance like the mythical goblin. My long snout, called a rostrum, senses prey and then my jaws quickly extend outside my mouth to catch it.

My mouth can open as wide as 111 degrees straight without any extra effort. A fun fact about my rostrum is that it shrinks as I grow older!

My skin is semi translucent, meaning you can almost see through it. It makes me look pink in colour due to the blood vessels under my skin.

SCIENTIFIC NAME: Halitrephes maasi
I’m a deep-sea hydrozoan part of the family Halicreatidae. I’m not exactly a jellyfish but closely related to one. I live in both temperate and tropical waters of the Atlantic, Indian, Southern, and Pacific Ocean.

I’m usually found in deep waters between 1,000 and 1,500 m (4,000 to 5,000 ft). Not much is known about my life cycle, diet or behaviour.

My frilled tentacles are so thin that they look like they are floating next to my body. Without any lights to shine on it, I would be almost invisible as I float around the ocean depths because of my translucency.

I’m a ferocious predator that lurks in the deep oceans of the world. I have very large teeth in comparison to my body size, adding to my scary appearance.

I have a long protrusion on my chin called a barbel. I use this light-producing barbel like a fishing lure and attract the attention of my prey. Once an unsuspecting fish gets too close, I snap it up in my powerful jaws.

The first thing you will notice about me is my large mouth. In fact my mouth is bigger than the rest of my body! It can be opened wide enough to swallow an animal much larger than itself. The hapless fish is then deposited into a pouch-like lower jaw, which resembles that of a pelican. Hence, I’m also known as the pelican eel!

My stomach can also stretch to accommodate my large meals. Unlike many other deep sea creatures, I have very small eyes. I also have a very long, whip-like tail which I use for movement. The end of my tail is tipped with a light-producing organ known as a photophore and through bioluminescence, I give off occasional red flashes. I use this light as a fishing lure to attract fish and other creatures whom I then snap up in my gigantic mouth.

SCIENTIFIC NAME: Teuthidodrilus samae
I look like a fusion animal, half-squid and half-worm. In fact, I’m all worm and related to earthworms and leeches. I just happen to have ten long tentacles on my head which give me my name.

My tentacles are elastic and extendable, and they can be longer than my entire body! Two of them – the yellow ones – are used for feeding. The other eight are used to breathe, or feel my way around. My head also has 2 feathery, brush-like ‘nuchal organs’ that act like a nose, picking up chemical smells in the water.

I am usually found in the deep sea up to depths of 2,912 m (9,554 ft). I feed on marine snow which is basically organic debris and waste that sinks to the bottom of the ocean.

I can grow to about 9 cm (3 ½ in) in length and my internal anatomy is relatively visible from the outside since my outer body is semi-transparent.

SCIENTIFIC NAME: Magnapinna pacifica
I am an extremely rare deepwater squid that has never been caught in my mature form but known only from 3 juveniles (young ones) that were captured.

Even then, one of them was obtained from a fish’s stomach! I have, however, been observed multiple times during deep sea dives by submersibles after my first live sighting in 1988.

I look very distinct from all previously known squids. Unique among cephalopods, my arms and tentacles are of the same length and look identical.

My arms also are perpendicular to my body, looking like strange "elbows". Most remarkable is the length of my elastic tentacles, almost 15-20 times my mantle or body length.

SCIENTIFIC NAME: Chiasmodon niger
I’m a deep ocean fish and am sometimes referred to as the 'Ocean Monster' because of my unusual, scary appearance. I’m best known for eating prey 10 times my size!

I am found in tropical and subtropical waters of all the world’s oceans but am most widespread in the Atlantic Ocean. I’m a small fish, growing up to 20 cm (8 in) in length.

My body is elongated and compressed, without scales, and is brownish-black in colour. My head is long, with a blunt snout, moderately sized eyes, and a large mouth. Both my jaws have a single row of sharp teeth, which interlock when my mouth is closed.

Using my large mouth and very sharp teeth, I seize my prey by its tail and then swallow it. Since it is not easy to find food deep in the ocean every day, I’ve adapted a way to store it in my stomach and digest it over time.

I live in the deepest part of the world's oceans and hence, until 2004, I had never been spotted in the wild! I have a prominent triangular head with massive circular eyes that capture bioluminescence. My mantle, or main body, is around 6 feet or 2 metres in length.

The arms and tentacles, which account for most of my length, are lined with hundreds of suction cups. Each suction cup is surrounded by sharp, serrated edges that help me grab my prey.

I move through the water at high speeds by taking water into its mantle cavity and then expelling it with great force.

I have a complex nervous system and a highly developed brain. I’m highly intelligent, and one of the smartest invertebrates in the ocean.