Your Paw-some Question | Why are giraffes' tongues purple?

Send us Fan Mail Cosmo and I found out why our tallest animal friends have long, dark tongues—and what melanin does for humans, too. Thanks to Cynthia Cooper, who studies animal pigments at WSU Vancouver. Find out more about how DNA works with Amoeba SistersRead my answer about how sunscreen worksInvestigate human skin color with PBSCheck out prehensile tongues with Cleveland ZooLearn about Cynthia Cooper's zebrafish labSound effects courtesy Pixabay As always, submit burning questions ...