If a vampire bat goes 2 days without drinking blood, they can die. However, well fed female bats will puke up blood and share it with other bats that they like in exchange for grooming.
13
A domestic cat can sprint at about 31 miles per hour.
274
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
Lobsters have blue blood.
476
Drivers kill more deer than hunters do.
660