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
Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
Jumping fleas can accelerate 50 times faster than the space shuttle.
218
Cats and dogs can hear ultrasound.
350
In 1955, the citizens of São Paulo were so upset with their government that they elected a rhinoceros named Cacareco (meaning rubbish) to the city council in protest, with over 100,000 votes.
18
It's possible to train your cat to use the toilet as a litter box and even flush afterwards.
109
On some poorly researched trivia lists it is stated as a fact that a pregnant goldfish is called a twit. This is not true as goldfish lay eggs.
71