The classic example of natural selection: the green beetles are easier for the birds to find and eat. The beetle population will become mostly brown as a result. In other words, it’s a bad day to be a green beetle.
Natural selection
The classic example of natural selection: the green beetles are easier for the birds to find and eat. The beetle population will become mostly brown as a result. In other words, it’s a bad day to be a green beetle.
The Weekly Show 