Evolution: It's the best. I personally love walking upright, and being a human person instead of an ape. Really, it's great. And we should definitely teach it in schools. For sure, 100 percent.
But there are some animals that didn't get Charles Darwin's memo, maybe? They may have been hidden from view for years, but thanks to a newly viral Tumblr, we can marvel over them -- their facial genitalia, inexplicable sliminess and other nightmare-inducing qualities -- together.
Katie McDonough is Salon's politics writer, focusing on gender, sexuality and reproductive justice. Follow her on Twitter @kmcdonovgh or email her at firstname.lastname@example.org.