Sheep, goats, octopuses, and toads have rectangular pupils.
7
There's a phone app called RoboRoach that allows you to remotely control a cockroach through a chip that you to manually implant into the unwitting critter.
10
A koi fish, named "Hanako", was owned by several individuals over many years and lived to be 226 years old, dying in 1977.
6
Tigers can see 6 times better at night than humans.
305