There's a young hippo and a 130+ year old tortoise in a Kenyan wildlife preserve who are best friends and they even sleep and play together.
40
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
It's possible to train your cat to use the toilet as a litter box and even flush afterwards.
109
Cats and dogs can hear ultrasound.
350
The cat brain weighs about 30g.
167
In 1949, an official boxing match between a bear and a man was held. The bear won.
41