Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
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There was a bear called Wojtek who was adopted by Polish soldiers during WW2. It carried ammunition, wrestled with soldiers, and drank beer.
40
In Australia, there are spiders big enough to eat snakes.
20
Alligator snapping turtles can live for over 150 years. Scientists know this because some of the turtles had musket balls in their stomachs.
271
In 1949, an official boxing match between a bear and a man was held. The bear won.
41
The most expensive dog in the world is the Tibetan Mastiff; worth $1.5 million.
2
There's a rare breed of pig that looks like a sheep.
14