Sheep, goats, octopuses, and toads have rectangular pupils.
7
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
Mosquitoes don't just bite you, they also pee on you.
11
Drivers kill more deer than hunters do.
660
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