The oldest creature ever found was Ming the clam at an admirable 507 years old.
16
The cat brain weighs about 30g.
167
Parrotfish make themselves a kind of mucus 'sleeping bag' which masks their smell from predators and keeps parasites away.
4
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
The largest breed of rabbit is the Flemish Giant.
65
Dolphins sometimes have fun by blowing bubbles and creating rings of air underwater, which they then swim through.
17