[Abdullah]

Quote by: someguymp3 but it's NOT mutations, it's variations. Variations exsist - look at humans. Tall, small, quick, slow, intelligent, less-so. Now, if you have a group of giraffes that have a certain amount of food, one which is insufficient, those with longer necks have a greater amount of food available to them (since they can reach higher) so therefore they have a better chance of reproducing and consequently passing on these beneficial genes. Therefore, this characteristic is more common in the next generation and those with still longer necks are once more at an advantage and so the cycle continues. We use this knowledge in farming, for instance to breed cows that produce a good quality of milk with those who produce a good quantity of milk. It works. Recently, in the UK, very close to an airport two types of the same insect lived on the hedges. One was green, the other dark and the green heavily outnumbered the dark. The airport produced a large amount of pollution and fairly quickly the hedges turned black through all the waste that landed on them. In a matter of months, the dark insects started to outnumber the green ones. What was happening was that birds could spot green insects a lot better than the more camoflauged dark ones. When the area was cleaned up and the hedges were returned to their green state, the situation was reversed. And that's evolution as taught to 12 year olds. Please know what you're talking about before you start syaing that the entire scientific world has got it wrong

really? I thought it was natural selection and mutations (random changes), not variations.