15

An American scientist named Arnold Lande announced that he had designed a special scuba-diving suit which would allow humans to breathe liquid the way a fish does.

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Amphibians are a class of vertebrates (animals with backbones) that live both in water and on land. They evolved from fishes about 350 million years ago. The first amphibians had long bodies and tails and breathed by means of lungs. They had four limbs and each limb had five digits
(Fingers or toes) They moved slowly on the land and more quickly in the water.

5

In the world of nature.

1

A fast way of grouping animals is based on the presence or absence of a backbone. Those with backbones are called vertebrates.

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Facts about the Nurse Shark.

4

Delve into the mysteries of this fearsome fish, allow its facts to engross you.

5

A hard scale protects its body. On each side of the Fish, there is a sense organ called the Lateral lines. It feels vibration from boats, people, and other objects in the water. They have also a very powerful sense of smell.

1

The largest mammals in the animal kingdom are the whales, some of which are five feet long, but most of which are over fifty feet long. Blue whales are the largest. They generally grow to one hundred feet in length and weigh approximately 300,000 pounds.

1

The parrot-fish spends the night in sleeping bag that it produces itself. How does it do that?