A classic example of natural selection at work is the origin of giraffes’ long necks. The ancestors of modern giraffes were animals similar to deer or antelope, with necks of ordinary length.

He began contemplating while aboard HMS Beagle, but it took several years before he came up with his theory of evolution by natural selection. The finches – once they had been identified as different ...

Sustainable use management of wildlife often harms the very animals that natural selection would otherwise protect. Among elephants, for example, herds normally are matriarchies, usually led by the ...

The proportion of well-adapted organisms in a population can increase over the generations by the process of evolution by natural selection.

Examples of relatively asocial animals include mosquitoes and polar ... what some have called the “problem of altruism.” Natural selection operates against individuals who reduce their own ...

This is a key part of what we call natural selection ... They could then be given examples of organisms from these habitats and asked to discuss in groups how the animals are suited to those ...

Q: Tell us about this "dangerous idea" of Darwin's. A: I think Darwin's idea of natural selection is the best idea anybody ever had, ahead of Newton, ahead of Einstein. What it does is it promises ...