Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
Dolphins have names for one another.
18
Sifrhippus was a species of horse about the size of an average duck and roamed North America 56 million years ago.
2
In Australia, there are spiders big enough to eat snakes.
20
The most expensive cow in the world was sold in 2009 for $1.2 million.
-3
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