Ever since Darwin, biologists had been looking for an example of evolution in action.

Their similar shape and life styles is an example of convergent evolution.

The many endemic fish species make it a key example of specialized evolution.

The fact that they look similar is an example of adaptive evolution.

Their common body form is an example of convergent evolution.

If so, this would be an example of convergent evolution.

It is also one of the best examples of evolution in action.

Hence, this appears to be an example of convergent evolution.

It really is quite a neat example of evolution and ecology with so many different forces at work.

It also offers a striking example of evolution almost standing still.