Life Changes

Life changes is an ongoing process. It must for all creatures adapt to these changes otherwise ended up to extinction.

      Many animals in the world were found in the past but no longer existed because of a lot of reasons.

They may be died out because they have lost their habitat or their eggs, etc.
      Other animals are endangered now like the giant panda, Komodo dragon and leather back turtle, etc. 

The dinosaurs, for example, are extinct animals

Some endangered animals