Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
Lobsters have blue blood.
476
Emus and kangaroos cannot walk backwards.
26
The venom of the king cobra is so deadly that just one gram of it can kill 150 people.
76
Cats recognise the voice of their owner, but never evolved to care.
22
A Giraffe has the same number of bones in its neck as a man.
36