Where do animals get the habit of burying their feces / excrements?
What animal's ejaculate tastes best?
Is it possible to cross a pigeon and a parrot in a traditional way without genetic engineering?
Why are humans the only mammals that never stop drinking milk in adulthood?
Why do cats farts without a sound?
Why do animals, unlike humans, lack aversion to their own and other people's feces? After all, this is a breeding ground for infection and evolutionarily it should have taken hold?