Wild animals play an important part in the balance of nature, and (1) ….. us with many important products. Birds and other small animals help control (2) ……. Wild animals provide fur, food, and recreation. They (3) …… make our surrounding more interesting.
Uncontrolled hunting (4) …… destroyed much wildlife. People have also harmed animals by destroying their habitats. Many animals, such as the passenger pigeon, have disappeared completely. Others, including the whopping crane, the blue whale, and the American alligator, are in danger of dying (5) …….