Lobsters have blue blood.
476
A cat rubs against people not only to be affectionate but also to mark out its territory with scent glands around its face. The tail area and paws also carry the cat's scent.
293
Vanilla flavoring is sometimes made with an ingredient from beaver pee.
82
When a drone bee mates with a queen, its ejaculation is so powerful that it can even be heard by the human ear.
5
Alligators can live up to 100 years.
337
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
The reindeer is the only mammal that can see UV light.
17