Cats sleep for 70% of their lives.
8
It has been scientifically proven that stroking a cat can lower one's blood pressure!
456
Only 3% of bird species have penises.
0
The octopus does not have a blind spot.
273
Mosquitoes don't just bite you, they also pee on you.
11
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
One reason that kittens sleep so much is because a growth hormone is released only during sleep.
212