The reindeer is the only mammal that can see UV light.
17
A group of pugs is called a grumble.
10
Alligator snapping turtles can live for over 150 years. Scientists know this because some of the turtles had musket balls in their stomachs.
271
Sharks, like other fish, have their reproductive organs in their chests.
248
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