Biology
Ecomorphological Diversification in Anolis Lizards Across Microhabitats
Quick fact
Anolis lizards have evolved the same set of about six 'ecomorphs' independently on each major island of the Greater Antilles, meaning that a twig-dwelling anole on Cuba looks and behaves almost exactly like a twig-dwelling anole on Hispaniola, even though they are different species.
Why this is interesting
On different Caribbean islands, you can find almost identical-looking lizards—yet they are not closely related. How can evolution repeat the same shapes over and over?