It has been scientifically proven that stroking a cat can lower one's blood pressure!
456
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
Jellyfish as a species are actually older than dinosaurs and sharks.
383
A group of pugs is called a grumble.
10
When dragonflies mate, their tails form a love heart.
22
The reindeer is the only mammal that can see UV light.
17