There is a lion in the forest. Every day he goes out to look for food. The small animals in the forest are all afraid of him.

Not far from the forest there are four bulls(公牛). They are good friends, and often go out together. The lion tries many times to catch them, but he cannot do that. Every time he comes near, the four bulls stand together to fight him. So he can do nothing to them.

One day the bulls have a quarrel. After that, each of them goes his own way. When the lion sees this, he is very happy. One by one he catches all the four bulls and eats them up.

The first crocodiles (鳄鱼)lived on the earth about 240 million years ago. How much do you know about these animals? Here are some amazing (令人惊奇的)facts about them.

◆The biggest crocodile is the saltwater crocodile. It can be as long as seven meters!

◆lf you take a bright light at night over a river with crocodiles inside, you will see pairs of red spots(点). Those are the crocodiles' eyes. They can see well at night.

◆When you see a crocodile with its mouth open, don't be scared. It just tells you it's too hot.

◆On the beach, crocodiles get tired very quickly, but they can stay in the water for 2-3 hours.

◆Most crocodiles can live up to 70 years old!