When cats are happy, they may squeeze their eyes shut.
10
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
Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
13
A group of pugs is called a grumble.
10
A couple had their wedding rings engraved with a waveform of their own voices saying "I do."
10