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

In turn it means that adaptive evolution may be faster than biologists had thought.

This raises an important issue, which is that many of these tests for adaptive evolution are very weak.

Several recent studies have compared the amounts of adaptive evolution occurring between different populations within the human species.

The rate of adaptive evolution in the human genome has often assumed to be constant over time.

Male-female competition could facilitate an arms race of adaptive evolution.

Natural selection remains the primary explanation for adaptive evolution.

Neither found Darwin's detailed theory of adaptive evolution very useful.

He scorned the claim that camouflage might be the product of adaptive evolution.

Evolvability is defined as the capacity of a system for adaptive evolution.