A Frog in his Throat

One more delightfully odd frog: Darwin’s frog. The male swallows the fertilized eggs that his mate has laid and stores them in his vocal sac. (That’s the little sac inside the throat that blows up like a balloon to amplify the frog’s call.) They stay there for up to fifty days, until the eggs have hatched and the tadpoles have developed into tiny frogs. And then…