When dragonflies mate, their tails form a love heart.
22
Meysi is one of the world's smallest dogs, measuring in at just 7cm tall, 12cm long, and weighing a meagre 250 grams (only slightly heavier than a hamster!)
11
When cats are happy, they may squeeze their eyes shut.
10
Holding hands with someone you love can alleviate physical pain as well as stress and fear.
26
Dolphins have names for one another.
18
A couple had their wedding rings engraved with a waveform of their own voices saying "I do."
10