1.   It has evolved from the simplest folk through the mannered court and finally to the expert classical dance.

2.   Lions and house cats evolved from a common ancestor.

3.   Many scientists now believe that birds evolved from dinosaurs.

4.   Regional networks evolved from networks that originally connected geographically proximate universities.

5.   The first effective antidepressants evolved from discoveries in a quite different field.

6.   The game evolved from a purely corinthian pastime to an internationally recognised entity.

7.   The piece evolves from narcissistic poses, with each dancer in a spotlight, two of them sprawling across folding chairs.

8.   They evolved from simple life forms that existed millions of years ago.