Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
In 1955, the citizens of São Paulo were so upset with their government that they elected a rhinoceros named Cacareco (meaning rubbish) to the city council in protest, with over 100,000 votes.
18
A lion in the wild usually makes no more than twenty kills a year.
186
Gorillas can catch human colds and other illnesses.
205
A cow produces around 200,000 glasses of milk in her lifetime.
373
A dairy cow can produce more milk when listening to music.
446
Mosquitoes don't just bite you, they also pee on you.
11
Using a remote-controlled camera, biologists caught dolphins getting high by sucking on puffer fish. They were even caught passing the puffer fish around.
23