Many animals hide(隐藏) to stay alive. They hide in many ways. Some animals hide in trees; Usually their colors help them to stay alive. Chameleons(变色龙) can hide by changing colors. Some chameleons can change colors in five minutes. Wild rabbits always have the same color as the things around them, so it's hard to find them. Other animals can't eat them easily.

    Some animals can make other animals think they are very big. If they look very big, other animals will stay away from them. Lions look very, very big and scary.

    Some animals try to stay around other animals. Some birds stay in a circle, each toward a different direction(朝不同方向). In this way, they can also help each other stay alive.