A puppy is born blind, deaf, and toothless.
16
Cows can sleep standing up, but they can only dream lying down.
745
When a male gentoo penguin "falls in love" with a female penguin, he searches the entire beach to find the perfect pebble to present to her.
25
In 2011, a male tiger in India adopted a litter of orphaned cubs, taking on the role of ‘mother’. Wildlife officials say such behavior had never been observed before.
9
The sound of a tiger's roar can travel a distance of up to 2 miles (~3 km).
255
When cats are happy, they may squeeze their eyes shut.
10
Lurch, a Watusi bull, had the largest horns in the world.
32