And Slaters Go Plop

What it is:
Evolution is descent with modification. Another way of saying this is that over the generations the descendants gradually become different (by mutation). Charles Darwin’s contribution to the theory of evolution was to add the observation that it is the environment that rewards some mutations and penalises others – this is called evolution by natural selection.

What it’s not:
It’s got nothing to do with the Big Bang and it’s got nothing to do with how life started in the first place.

Find out more:
http://evolution.berkeley.edu/