Cows can sleep standing up, but they can only dream lying down.
745
Honeypot ants are a unique insect that use their own bodies as living storage pots of honey.
4
A group of unicorns is called a blessing.
304
A koi fish, named "Hanako", was owned by several individuals over many years and lived to be 226 years old, dying in 1977.
6
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