When I was living in Chicago, my landlady had a wonderful golden retriever that was incredibly friendly, smart and fun to play with - but he had one ridiculous habit: he liked to eat his own poop.

While poop is decidedly not on the menu for us humans, it’s a normal food for many animals. In one study in Tanzania, scientists remarked that hooded vultures showed more interest in protein-rich lion ...

It’s not uncommon for a dog to sniff around a yard, come across a pile of poop, and gobble it up. Or even to eat its own poop. It might sound quite disgusting, but lots of dogs will eat poop at some ...