The cat brain weighs about 30g.
167
Alligator snapping turtles can live for over 150 years. Scientists know this because some of the turtles had musket balls in their stomachs.
271
Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
When Washoe, the first chimp to use sign language, was told that her caretaker's baby had died, she signed "CRY."
20
All pandas are ‘owned’ by China. They rent them out to zoos for $1mil/year each with minimum of 10 years.
16
Jaguars frequently get high by eating hallucinogenic roots, which also increases their senses for hunting.
6
Rattlesnake mating sessions have been known to last more than 22 hours.
232
Christmas Island has bridges for crabs to stop them getting run over during the mass migration.
9