Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
Dogs sometimes fake being sick to get attention.
26
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
Dolphins have names for one another.
18