Cats and dogs can hear ultrasound.
350
Sharks, like other fish, have their reproductive organs in their chests.
248
Cats are one of the only animals to domesticate themselves and approach humans on their own terms.
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
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132