Can you guess what this is? A pinecone, perhaps? Tell us your best guess below! What does a pangolin's shell have in common with your fingernails? They're both made of Keratin -- a protein that comes in handy when the pangolin rolls into a ball in defense mode.  At this point, the mammal can close its ears, nose and eyelids to make an impenetrable force. . . #wildlifeprotection #endangeredanimals #endangered #extinction #extinctanimals #animalprotection #hyenas #orangutans #pangolin #keratin #fingernails #hair #photooftheday