Sounds disgusting, right? But the koala needs all that bacteria.
When a koala grows up, it eats poisonous eucalyptus leaves. So why doesn’t it get sick? Because the bacteria in its body break down the poison. Thanks to those bacterial buddies from mom’s pap, a koala can munch on eucalyptus all day long.
For more gross facts about our animal neighbors, check out Animal Grossapedia. But be sure not to read it right after lunch!