Penguins have a gland above their eye that turns saltwater into freshwater.
12
Female kangaroos have three vaginas.
2
A scorpion can hold its breath for up to 6 days.
19
Christmas Island has bridges for crabs to stop them getting run over during the mass migration.
9
Bats sleep 18-20 hours per day.
5
When Washoe, the first chimp to use sign language, was told that her caretaker's baby had died, she signed "CRY."
20
When Koko, the gorilla famous for knowing sign language, was asked where gorillas go after death, she responded by signing “Comfortable hole, bye.”
23
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23