Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
Cats and dogs can hear ultrasound.
350
A lion in the wild usually makes no more than twenty kills a year.
186
Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
6
A cow produces around 200,000 glasses of milk in her lifetime.
373
Tigers can see 6 times better at night than humans.
305