Maybe you practice on animals, get the feel for it.

All of the cars in the game are based on various animals.

Work on plants and most other animals is not much further along.

In the past, many of the tests might have been done only on animals.

Much of the research has been focused only on animals.

The woman he had met at the library, in the section where they kept the books on animals.

Almost every medical treatment in use has been tested on animals.

But most research has been done on animals or in test tubes, not people.

At the time there were about 300 experiments on animals each year.

It also had an adverse effect on other local animals.