Evo 1.0

Specifically, what causes Variation?

A mutation is a change (no matter how small) in...

These elephants are two separate species due to enough mutations over time. This supports the 

The different shapes of the ear may help each elephant survive. Others without them have died.

Look at the picture below. Compare the ears. This shows...

Having those different shapes to survive in their environment is an example of a/an...