There are two hundred fifty thousand kinds of sea animal under the sea. There are incredible things about undersea life. Dolphins are the cleverest animals in the world. They understand the words people say. Sponges are older than dinosaurs. World’s biggest fish is whale shark.
It eats small fish and planktons. Planktons are very small. World’s smallest fish is paedocypris. It eats plankton, too. Octopus has got three hearts because it has got two legs and six arms. World’s most dangerous fish is piranha. World’s most beautiful fish is mandarin fish. Jellyfish hasn’t got a brain. We must protect this beautiful sea life.