It has been calculated that a single breath from a mature blue whale can inflate up to 2,000 balloons.
492
Lobsters have blue blood.
476
Sheep, goats, octopuses, and toads have rectangular pupils.
7
The seahorse is the only fish to have a neck.
12
Cats are one of the only animals to domesticate themselves and approach humans on their own terms.
20
Sharks, like other fish, have their reproductive organs in their chests.
248