Many people think that animals in the zoo are very happy, but most of them are not. Do you know why? Animals like tigers, lions and bears usually live in the forests or mountains. They run, jump, play with their children and catch small animals for food. But now they have to stay in small rooms in the zoo. They do not have to find food by themselves because the workers in the zoo give food to them. They just eat, walk and sleep in the zoo every day. Their life in the zoo is so easy and safe, but they are not free.