The cat brain weighs about 30g.
167
Two dogs were among the Titanic survivors.
262
Vampire bats adopt orphans, and are one of the few mammals known to risk their own lives to share food with less fortunate roost-mates.
402
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
In Australia, there are spiders big enough to eat snakes.
20
One in three dog owners say they have talked to their pets on the phone.
427