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In the Sea: Picture Dictionary

Little Explorers

DictionariesOceans
Little Explorers English Picture Dictionary►
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Ocean-Related Words

African Penguin
African Penguin

The African penguin is a small, flightless bird that lives on islands off the coast of southern Africa.

anchor
Anchor

An anchor is a heavy metal device that holds a ship in place.

Boat
Boat

Boats float in the water.

Blue shark
Blue Shark

The blue shark is a sleek, fast-swimming shark with blue skin.

Blue Whale
Blue Whale

The blue whale is the biggest animal that ever lived. It eats tiny food that it sieves through baleen.

Bowhead Whale
Bowhead Whale

The bowhead whale is a large whale that eats tiny food that it sieves through baleen.

Breaching
Breaching

Breaching is when whales jump high out of the water. Sometimes whales spin around while they are breaching.

Bull shark
Bull Shark

The bull shark is a dangerous predator that has a flattened snout.

Clam
Clam

Clams are animals with two shells. They burrow under the sand.

Clown Fish
Clown Fish

The clown fish is a colorful fish that lives with sea anemones.

Conch
Conch

The conch is a large, shelled animal from warm seas.

Cookiecutter shark
Cookiecutter Shark

The cookiecutter shark is a small shark that takes circular bites out of its prey. Also known as the luminous or cigar shark.

coral
Coral

Coral is a tiny ocean animal that lives in colonies. Some corals leave a hard, stony skeleton when they die.

coral reef
Coral Reef

Coral reefs are warm, clear, shallow ocean habitats that are rich in life.

Crab
Crab

A crab has a hard shell and eyes on stalks on its head.

Cuttlefish
Cuttlefish

The cuttlefish is a close relative of the octopus and the squid.

angelfish
Angelfish

Angelfish are brightly-colored fish that live in warm water.

angelshark
Angelshark

Angelsharks are sharks that have flat bodies and live on the ocean floor.

Basking Shark
Basking Shark

The basking shark is huge and eats very tiny animals that float in the ocean.

Beluga Whale
Beluga Whale

The beluga is a small, white, toothed whale that lives mostly in cold, arctic waters.

coral reef
Coral Reef

Coral reefs are warm, clear, shallow ocean habitats that are rich in life.

Dogfish Shark
Dogfish Shark

The dogfish shark is a small, very common shark that is found all over the world. It is not dangerous to people.

Dolphin
Dolphin

A dolphin is a marine mammal with a long nose and teeth. Dolphins are whales.

Dugong
Dugong

Dugongs are gentle, slow-swimming, aquatic mammals.

Echolocation
Echolocation

In echolocation (also called sonar), a high-pitched sound (usually clicks) is sent out. The sound bounces off the object and some returns. The returning echo is interpreted to determine the object’s shape, direction, distance, and texture. Dolphins (and other toothed whales) and some bats use sonar to navigate and find prey.

Eel
Eel

The eel is a long, snake-like fish.

Elephant Seal
Elephant Seal

The elephant seal is a huge seal that lives in the Pacific Ocean.

Emperor Angelfish
Emperor Angelfish

The emperor angelfish is a brightly-colored, flattened fish that lives in shallow warm waters.

Emperor Penguin
Emperor Penguin

The emperor penguin is the largest penguin; it lives on ice packs in Antarctica.

fiddler crab
Fiddler Crab

The fiddler crab is small crab that lives on beaches. The male fiddler crab has one enlarged claw.

Fin
Fin

Fish use their fins to swim.

Fin Whale
Fin Whale

The fin whale is a very large baleen whale. It is the second largest animal in the world.

Fish
Fish

Fish live in the water and breathe with gills.

Flipper
Flipper

Flippers are wide, flat limbs that many marine animals use for swimming. Seals and whales have flippers.

Flukes
Flukes

The tail of whales and dolphins is called the flukes (each half of the tail is called a fluke). Flukes have no bones in them. Whales swim by moving their flukes up and down in the water (fish move their tail left to right).

Giant Squid
Giant Squid

Giant Squid swim deep in the oceans. They have ten arms and their eyes are the size of basketballs.

Gills
Gills

Gills are organs that fish and amphibians use to breathe underwater.

Goblin Shark
Goblin Shark

The Goblin shark has a very long snout.

Gray Whale
Gray Whale

The gray whale is a baleen whale that eats tiny organisms from the mud on the bottom on the ocean.

Great White Shark
Great White Shark

The Great White shark is a large, meat-eating fish.

Gull
Gull

Gulls are birds that live near oceans and lakes.

Hammerhead Shark
Hammerhead Shark

The hammerhead shark has a head shaped like a hammer.

Harp Seal
Harp Seal

The harp seal is a marine mammal that lives in the North Atlantic and in the Arctic Ocean.

Hatchetfish
Hatchetfish

Hatchetfish are oddly-shaped fish from South and Central America.

Hermit Crab
Hermit Crab

Hermit crabs are crabs that lack a hard shell; they use a discarded shell for protection.

Horseshoe Crab
Horseshoe Crab

The horseshoe crab is a hard-shelled animal that lives in warm coastal waters on the sea floor.

Hull
Hull

The hull is the main body or frame of a ship.

Humpback Whale
Humpback Whale

Humpbacks are very acrobatic whales that sing beautiful, complex songs.

Intertidal Zone
Intertidal Zone

The intertidal zone is where the sea meets the land, the area between high tide and low tide.

Jellyfish
Jellyfish

Jellyfish are animals that have stinging tentacles.

Keel
Keel

The keel is the bottom of a ship.

Kelp
Kelp

Kelp is brown seaweed that grows in cold water.

Killer Whale
Killer Whale

Killer whales are also known as orcas. These whales eats hundreds of pounds of fish and marine mammals every day.

Krill
Krill

Krill are small marine animals that are eaten by many big animals, including some whales.

Lanternfish
Lanternfish

Lanternfish are fish that have light-producing organs and very large eyes.

Lemon Shark
Lemon Shark

The lemon shark is a yellowish shark.

Lighthouse
Lighthouse

A lighthouse shines a very bright light so ships won’t sail ashore or into rocks by mistake.

Limpet
Limpet

The limpet is a marine animal with a soft body and a flattened, cone-shaped shell.

Lobster
Lobster

A lobster lives on the ocean floor and has five pairs of legs. Lobsters have blue blood.

Lobtailing
Lobtailing

Lobtailing is when a whale sticks its tail out of the water into the air, swings the tail around, and then slaps the tail on the water’s surface. Lobtailing makes a very loud noise.

Macaroni Penguin
Macaroni Penguin

The macaroni penguin is a penguin from the Antarctic that has a yellow, feathery crest on its head.

Mako Shark
Mako Shark

The mako shark is a very fast shark with bluish skin.

Manatee
Manatee

Manatees are gentle, slow-swimming, aquatic mammals.

Man-of-war
Man-of-war

The Portuguese man-of-war is a floating colony of animals that has very long, stinging tentacles. It lives in warm ocean waters.

Manta Ray
Manta Ray

Manta rays are harmless fish and are related to sharks. Mantas are the biggest rays.

Marine Mammals
Marine Mammals

Marine mammals live in the sea and breathe air. Seals, sea lions, whales, and others are marine mammals.

moray eel
Moray Eel

The moray eel is a long, snake-like fish that has circular gills.

Narwhal
Narwhal

The narwhal is an Arctic whale; the male has a huge tooth.

Nautilus
Nautilus

The nautilus is a sea animal related to the squid and octopus!

Nurse shark
Nurse Shark

The nurse shark is a large predator that lives in warm water in coral reefs.

Octopus
Octopus

The octopus is an ocean animal (a cephalopod) that has eight arms and lives on the sea floor. The plural of octopus is octopuses.

Orca
Orca

Orcas are also known as killer whales. An orca eats hundreds of pounds of fish and marine mammals every day.

Otter
Otter

An otter is a playful aquatic mammal.

Oyster
Oyster

The oyster is a soft-bodied marine animal that is protected by two hard shells.

Pelican
Pelican

The pelican is fish-eating bird with a huge, pouched bill.

Penguin
Penguin

Penguins are birds that cannot fly but swim very well.

Plankton
Plankton

Plankton are tiny organisms that float in the seas and other bodies of water. Plankton is the base of the oceanic food web.

Pod
Pod

A group of whales is called a pod.

polar bear
Polar Bear

Polar bears are large meat-eaters live in the far north. They have clear-colored hair and black skin.

Porpoise
Porpoise

A porpoise is a marine mammal with a long nose and teeth. They are also known as dolphins; they are a type of toothed whales.

Porthole
Porthole

A porthole is a window in a ship.

Propeller
Propeller

A propeller is a device with blades that is turned by an engine; it makes boats (and some airplanes) move.

Prow
Prow

The prow is front part of a ship.

Pufferfish
Pufferfish

Also called blowfish, this poisonous fish can swallow water to double its size.

Queen Conch
Queen Conch

The queen conch is a large, shelled animal from warm seas. It is in danger of extinction.

Ray
Ray

A ray is a flat fish that is related to the sharks. Many have a long tail that stings.

coral reef
Reef

Reefs are warm, clear, shallow ocean habitats that are rich in life.

Right Whale
Right Whale

Right whales are baleen whales with a huge head and an arched mouth. They were almost hunted to extinction.

Rockhopper Penguin
Rockhopper Penguin

The rockhopper penguin is a small, aggressive, crested bird that cannot fly.

Rowboat
Rowboat

A rowboat is a small boat that is propelled by oars that a person moves.

Sail
Sail

A sail is a large piece of strong fabric that catches the wind and propels a boat or sailboard through the water.

Sailboat
Sailboat

A sailboat is a boat that has sails and is powered by the wind.

Sailfish
Sailfish

The sailfish is a deep-sea fish. It is the fastest fish in the sea and can swim up to 68 miles per hour (110 kph).

Salmon
Salmon

Salmon are fish that live in the sea and spawn in fresh water.

Sand
Sand

Sand is a loose material composed of fine debris of rock and mineral particles.

Sand Dollar
Sand Dollar

Sand Dollars are coin-shaped spiny-skinned sea bed animals that have 5-part radial symmetry.

Scales
Scales

Scales are thin, hard, overlapping plates on some animals. Fish are covered with scales. Butterfly wings are made of scales.

Scallop
Scallop

Scallops are animals that have two shells and live on the ocean floor.

Scuba Diver
Scuba Diver

Scuba divers swim under the water and carry their own air in a tank on their back.

Sea
Sea

A sea is a large body of salt water that is connected to an ocean. A sea may be partly or completely surrounded by land.

Sea Anemone
Sea Anemone

A sea snemone is a predatory sea animal that looks like a flower and lives on the ocean floor.

Sea Cow
Sea Cow

Sea cows (also called manatees) are gentle, slow-swimming, aquatic mammals.

Sea Cucumber
Sea Cucumber

Sea cucumbers are cylinder-shaped animals that live on the sea floor.

Sea Gull
Sea Gull

The sea gull is the common name for some birds that live near oceans and lakes.

Sea Horse
Sea Horse

The sea horse is a very strange type of fish - it has a long snout and a curled tail.

Seal
Seal

Seals are animals that live in the ocean but breathe air. They are marine mammals.

Sea Lion
Sea Lion

Sea lions are eared seals that live off the coast of western North America.

Sea Otter
Sea Otter

Sea otters are marine mammals with very dense, waterproof fur.

Sea Star
Sea Star

Sea stars, another name for starfish, are animals that live on the ocean floor.

Sea Urchin
Sea Urchin

The sea urchin is a spiny, globular animal that lives on the ocean floor.

Seaweed
Seaweed

Seaweed is a plant that lives in the sea.

Shark
Shark

Sharks are meat-eaters that have no bones, only cartilage (which is softer than bone) in their skeleton.

Shell
Shell

Some animals grow a shell for protection.

Ship
Ship

A ship is a very large boat.

Shrimp
Shrimp

Shrimp are small animals that live in the water.

Snail
Snail

A snail is a small, slow animal with its own shell.

Sponge
Sponge

A sponge is a primitive animal that lives in the water.

Spyhopping
Spyhopping

Spyhopping is when a whale pokes its head up out of the water and turns around, perhaps to look around.

Squid
Squid

Squids swim in the oceans. They have ten arms and an ink sac.

Starfish
Starfish

Starfish (also known as sea stars) are animals that live on the ocean floor.

Stingray
Stingray

A stingray is a flat fish with cartilage instead of bones. Its sting is in its tail.

Submarine
Submarine

A submarine is a vessel that can travel underwater and carry people.

Sunfish
Sunfish

The sunfish is a large fish with an almost circular, flattened body.

Swim
Swim

When you swim, you move around in the water.

Swordfish
Swordfish

The swordfish is a large fish with a long, sharp bill.

Tern
Tern

Terns are birds that are sometimes called “sea swallows.”

Thresher Shark
Thresher Shark

The thresher shark has a a greatly-elongated top part of the tail.

Tiger shark
Tiger Shark

Tiger sharks are large, fierce sharks that have faint stripes.

Tugboat
Tugboat

A tugboat is a sturdy boat that guides large boats in and out of harbors.

Tuna
Tuna

The tuna is a very large, bony fish that lives in the ocean. People eat a lot of tuna.

Walrus
Walrus

A walrus is a northern marine mammal with ivory tusks.

Water
Water

Water is a liquid that we drink and use to wash. Water covers over two thirds of the surface of the Earth, and much of our body is made of water.

Wave
Wave

There are waves of water in the ocean.

Weddell seal
Weddell Seal

The Weddell seal is a large, nocturnal marine mammal from Antarctica (near the South Pole).

Whale
Whale

Whales are large marine mammals. Whales breathe air using lungs.

Whale shark
Whale Shark

The whale shark is the biggest shark and the biggest fish, but it eats tiny food that it sieves through its gills. It is not a whale; it is a shark.

Whelk
Whelk

Whelks are ocean animals with a hard, spiral shell.

Xiphias
Xiphias

Xiphias is the group (genus) of swordfish, fast-swimming fish that have a long, sharp bill.

Yacht
Yacht

A yacht is a very nice small ship.

Zooplankton
Zooplankton

Zooplankton are tiny animals that float in the seas and other bodies of water.

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