Sheep, goats, octopuses, and toads have rectangular pupils.
7
Penguins have a gland above their eye that turns saltwater into freshwater.
12
Parrotfish make themselves a kind of mucus 'sleeping bag' which masks their smell from predators and keeps parasites away.
4
The most expensive dog in the world is the Tibetan Mastiff; worth $1.5 million.
2
The sound of a tiger's roar can travel a distance of up to 2 miles (~3 km).
255
Travis was a chimpanzee who socialized with humans since birth. He could log onto a computer to look at pictures, watch TV using a remote control, brush his teeth, feed hay to his owner's horses, water plants, and learned the schedule of passing ice cream trucks.
11