The octopus does not have a blind spot.
273
Only 3% of bird species have penises.
0
It's possible to train your cat to use the toilet as a litter box and even flush afterwards.
109
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
A newborn Chinese water deer is so small, it can (almost) be held in the palm of a hand.
13
When Koko, the gorilla famous for knowing sign language, was asked where gorillas go after death, she responded by signing “Comfortable hole, bye.”
23