Ocean Animals
Marine Ecosystems
Marine Invertebrates
Marine Mammals
Ocean Facts
100

This marine mammal is known for its intelligence and ability to communicate with sounds.


Dolphin

100

This underwater ecosystem is made of calcium carbonate structures and hosts thousands of species.

Coral reef

100

This animal has a jelly-like body and stinging tentacles.

Jellyfish

100

This giant mammal sings underwater and migrates long distances.

Humpback whale

100

This is the largest ocean on Earth.

Pacific Ocean

200

his large fish has a fearsome reputation, but many species are harmless to humans.

Shark

200

This area where a river meets the sea contains brackish water.

Estuary

200

This mollusk has a spiral shell and moves slowly.

Sea snail
200

This marine animal has whiskers and lives in cold waters.

Walrus

200

This phenomenon happens when the sea level rises and falls due to the moon’s gravity.

Tides

300

This animal has eight arms and can change color to camouflage itself.

Octopus

300

This underwater forest is made of giant seaweed.

kelpforest

300

This animal has five arms and can regenerate them if lost.

Starfish

300

This animal floats on its back and uses tools to open shells.

Sea otter

300

This type of water covers more than 70% of Earth’s surface.

Saltwater

400

This crustacean walks sideways and has large claws.

Crab

400

This deep ocean region is so dark that sunlight cannot reach it.

Abyssal zone

400

This segmented invertebrate lives on the ocean floor.

Marine Worm

400

This animal looks like a fish but breathes air and has lungs.

Porpoise

400

This process allows some sea creatures to glow in the dark.

Bioluminescence

500

This tropical fish is famous for its relationship with sea anemones.

Clownfish

500

This ocean zone is near the shore and rich in marine life.

Intertidal zone

500

his animal has a hard shell with two hinged parts.

Clam

500

This marine mammal has thick skin and lives in groups called herds.

Seal

500

This warm ocean current affects the climate of the Americas and Europe.

Gulf Stream

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