When cats are happy, they may squeeze their eyes shut.
10
Nicole Kidman is scared of butterflies.
65
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
Sharks have been on the planet longer than trees.
14
Nervous dogs wag their tails to the left, and happy dogs to the right (from the dog’s point of view) – and fellow canines pick up on this lop-sided tail language.
10
The elephant shrew’s closest relative isn’t a shrew — it’s actually an elephant
9