Sheep, goats, octopuses, and toads have rectangular pupils.
7
Sharks, like other fish, have their reproductive organs in their chests.
248
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
Only 3% of bird species have penises.
0
The sound of a tiger's roar can travel a distance of up to 2 miles (~3 km).
255