Quote:
Originally Posted by KV4N  But, define evolution. Small changes within kinds of animals is provable. But, whole animal to animal changing has not been seen. We have never seen a cat come from a dog or any such thing. Dogs have dogs and cats have cats. Small changes can can happen, like ear size and such. But, a dog will never become a cat. |
As the human sphenoid topples over, the human brain is getting larger and larger.
Evolution happens by leaps.
When a leap happened for example in Europe, it happened at the same moment for example in Asia.
Does evolution always happens as an adaptation to the environnement? Or can a mutation just happen within?