Sharks, like other fish, have their reproductive organs in their chests.
248
Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
6
Squirrels will sometimes adopt orphaned baby squirrels that they’re related to.
12
A dork is a whale's penis.
327
When Washoe, the first chimp to use sign language, was told that her caretaker's baby had died, she signed "CRY."
20
Vampire bats adopt orphans, and are one of the few mammals known to risk their own lives to share food with less fortunate roost-mates.
402
Denmark has twice as many pigs as there are people.
66