Dogs sometimes fake being sick to get attention.
26
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
The Platypus used to be considered a myth like Bigfoot and the Yeti.
18
An Indian man known as "Snake Manu" can put small snakes, including deadly cobras, into his mouth and pass them out through his nose.
59
Dolphins sometimes have fun by blowing bubbles and creating rings of air underwater, which they then swim through.
17
Condoms were originally made of animal intestines or linen.
347
Bats sleep 18-20 hours per day.
5