Cats lose almost as much fluid in the saliva while grooming themselves as they do through urination!
205
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
The head of a jellyfish is called the "Bell."
6
Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
Mosquitoes prefer certain blood types, and people with the “O” blood type are more likely to get bitten.
12
Condoms were originally made of animal intestines or linen.
347