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
In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
81
A group of pugs is called a grumble.
10
One litter of kittens can be produced by more than one father.
57
Dolphins have names for one another.
18
Baks the blind boxer has a seeing eye goose named Buttons; a four-year-old goose who leads the pup around everywhere either by hanging onto him with her neck, or by honking to tell him which way to go.
16
When dragonflies mate, their tails form a love heart.
22
A new born kangaroo is small enough to fit in a spoon!
7