A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
It would take about 1,200,000 mosquitoes to fully drain the average human body of blood.
217
When Koko, the gorilla famous for knowing sign language, was asked where gorillas go after death, she responded by signing “Comfortable hole, bye.”
23
There’s a bonobo named Kanzi who has learned to build a campfire and cook his own food.
8
Christmas Island has bridges for crabs to stop them getting run over during the mass migration.
9
A giraffe's kick is so powerful that it can decapitate a lion.
216