Dogs sometimes fake being sick to get attention.
26
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
Female kangaroos have three vaginas.
2
Gorillas can catch human colds and other illnesses.
205
George was the world's largest dog who weighed 233 pounds, stood at 43 inches tall from paw to shoulder, and ate 180 pounds of food a month.
7
Cats recognise the voice of their owner, but never evolved to care.
22
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