SEA ANIMALS

LEARN ABOUT SAE
Seas cover 70% of our planet. Many animals and plants live in these waters. Practise the names of sea animals, learn about dolphins, and find out about how important seas are. Oh, and did you know:

WHALES
There are many types of whales. Some whales eat krill and plankton which are tiny, shrimp-like animals. Other whales eat fish. The sperm whale loves to eat giant squid. Killer whales eat fish, and sometimes even eat seals and other whales. The blue whale is the largest animal in the world. It can grow up to 120 ft. long, and can weigh up to 170 tons.
Since whales and dolphins are mammals, they cannot breathe under water.

CORAL REF
A coral reef is home to many sea animals and plants.
Coral reefs are created by creatures called polyps. Polyps are tiny creatures that form a hard skeleton to protect their bodies. Polyps use plants to help them to make their skeleton. The skeletons of many polyps stick together and form a coral reef.

SEALS
There are about 30 species of seals. They all can be classified into two types: eared seals and true seals. Eared seals have ears that can be seen, and their flippers work well on land. True seals have tiny ears, and their flippers work better in the water.
Seals spend much of their time in water. But, they must return to the surface to breathe, just like other mammals.
HOW THEY ARE
A seal's respiratory system is adapted for water. A seal can go for 40 minutes without a breath. This allows them to dive to a depth of over 2,000 feet.
Seals are well designed to swim in water. Their bodies are very streamlined and their flippers propel them quickly through the water.

JELLYFISH
Other creatures of the sea include the jellyfish.
Jellyfish are creatures that have no bones. They are creatures that just float in the ocean. The have long, stringy tentacles, which help them get their food. Some jellyfish have stinging tentacles.
Other animals that have tentacles are the octopus and the squid.