Question

describe Darwin's theory of natural selection

Answer 1

Basically Darwin's Theory of Natural Selection states that species with favorable traits will survive longer. Take this for example: There are 10 giraffes all with different heights (this is called variation) and there is 4 that are 14 feet and the rest are all either 10, or 11 feet. The trees that they eat from are all 16 feet. Obviously, the 14 feet giraffes will be able to survive because they have favorable traits (their height allows them to reach the trees for food). The other 10 and 11 feet giraffes aren't able to reach for those trees and therefore will die because they are not consuming any food. The next generation of giraffes will most likely be reproduced from those giraffes that were able to survive and therefore, these giraffes will most likely be tall like their parents and because of their "favorable traits" they will also be able to survive. Also the same thing can happen with the 2nd generation of giraffes. Therefore that is how species evolve, "natural selection takes place in this way (taller trees and taller giraffes will survive). There are millions of more examples, research them online, just type into Google "natural selection", and you'll literally get millions of search results.