Evolution Keeps Repeating Itself. Scientists Are Starting to Understand Why
via MOTHERBOARD
Now, a group of scientists seeking to understand the mechanism through which evolution produces near-doubles has figured out that the two species underwent substantially different genetic changes, only to look the same. Their study details a striking example of convergent evolution, which is when two species have similar traits even though their shared ancestor didn’t have that trait—when the species diverged, it evolved in them separately.