A lot of endangered animals and birds (protect) by people.
Ecologists of the world (work) hard nowadays to protect animals from extinction.
But a lot of damage (do) to nature.
A lot of forests (cut down) everywhere in the world.
The habitats of animals and birds (destroy).
As a result a lot of rare animals (disappear).
Some of them (find) only in distant parts of our planet.
Hunters (kill) animals for their fur and horns every year.
Do you see these people who (collect) shells?
In the past people (sell) some rare animals as pets.