Natural selection is one of the ways evolution occurs. Natural selection happens as a result of seemingly insignificant, random, genetic changes. Tiny genetic changes might give a living organism...
Well, it's part of the weakest link theory. Natural selection weeds out those who are not fit to carry on their genes. Only the best genes are passed onto further generations, leading to a more...
One great example of natural selection would be turtles. Most turtles have a smooth shell all the way, without many big bumps, but some turtles in a remote location were discovered to have a hump in...
Improvement on personal survival. (Predation, habitat) Improvement on survival of young, Improvement on ability to secure nourishment/energy. Improvement on Co-operative strategies. Improvement in...
Mutations provide the 'raw material' that natural selection uses to determine 'an organism's fitness' to a) compete, b) thrive and c) to reproduce - and hence to Evolve.