Originally posted by the fool

i've said this so many times to people but even evolution contradicts itself if you take a look at it. Just look for instance mutations. The human body is a very fragile body- at the time before conception, so many things are happening that even a slight change or mutation such as an extra chromosome would potentially make the child abnormal.
Just one good, healthy mutation is very hard to come by. Imagine then how it was possible for humans to have evolved from monkeys with so many "healthy or good mutations" in just a a course of a couple of hundreds of millions of years. The odds are close to impossible.

Also, evolution tends to favor those mutations that enable us to adapt at environments tend to be preserved. If this is the case, then why didn't we develop small heads? In the pre historic times- in the abscence of doctors and education etc. many mothers have died of childbirth because of the child's big head. why didn't our heads mutate to smaller ones? evolution is simply a theory that scientists use to explain the unknown- it is no different from religion. Some philosophers say that religion was born out of man's means to explain the unknown. Since both are made by humans, they can't be perfect. they're also doomed to fail.

What you just wrote contradicts. You said that a 'healthy' mutation is rare, implying that mutations are totally random and no one controls them, which is true, but then you say 'why didn't our heads mutate into smaller ones?' suggesting that humans almost had a choice in the matter.

It's pretty simple to see how we still have big heads. First, the reason that humans are who we are, is because of our large brains, which inturn caused large heads because of evolution.

When a mother who dies during child birth and the large headed child survives, the 'large headed' trait or allele survives with it. If that child then has viable offspring, the 'large headed' trait still remains in that gene pool for another generation and that allele is still as frequent, even if the mother dies.

Babies also have their skull in fragments so their head isn't rigid when born, allowing them to be 'squeeze' out.

About humans evolving form apes. It was stated previously in this thread that 97.6% of our DNA the same as chimapanzees. I don't see how 2.7% of our DNA couldn't be mutated and passed on over hundreds of millions of years. It isn't all 'healthy' DNA either. There are sh*t loads of genetic disorders like haemophilia, sickle cell anemia, cystic fibrosis, colour blindness and dwarfism that are passed of from generation to generation.

Read Darwin's stuff about natural selection. He believed in god and religion but also believed inherited traits were passed on from generation to generation causing evolution. It's pretty funny though, that he had to travel to the Galapagos Islands and see the different species of finches in different environments to discover natural selection when the Peppered Moth, mentioned before by aiwass, was just miles away from his home.