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
A group of pugs is called a grumble.
10
Dolphins sometimes have fun by blowing bubbles and creating rings of air underwater, which they then swim through.
17
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
Urechis unicinctus is a species of marine spoon worm that is widely referred to as the ‘penis fish’.
2