A tough concept to understand with evolution is that no new species evolves from another.
We can tell by looking at a cat and a dog that they are different. But, evolution teaches that some time in the past, great^n grandad for these two creatures was the same.
But, great^n grandad did not have a cat and a dog for offspring. If you looked at the two offspring, you would only be able to tell that the dog offspring was a little more loyal, and the cat offspring was a little more independent.
From there, each offspring had a little more of a trait of the descendent species. A easy way to think of this is the in mathematics.
Start with 100 and 101, both numbers are really close, only a 1% difference. Well, square the numbers 100 times, how far off are you. 5 squares off is a 73% difference.
What this means is that over time, two species of animal will slowly change into two new species of animal, due to pressures of the enviornment. |
