Female kangaroos have three vaginas.
2
Dire wolves actually existed, living up to 10,000 years ago before going extinct.
10
When Washoe, the first chimp to use sign language, was told that her caretaker's baby had died, she signed "CRY."
20
Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
6
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
All pandas are ‘owned’ by China. They rent them out to zoos for $1mil/year each with minimum of 10 years.
16