Cats and dogs can hear ultrasound.
350
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
The largest earthworm on record was found in South Africa and measured 22 feet.
151
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
If a vampire bat goes 2 days without drinking blood, they can die. However, well fed female bats will puke up blood and share it with other bats that they like in exchange for grooming.
13
Cats are one of the only animals to domesticate themselves and approach humans on their own terms.
20
Sloths take two weeks to digest their food.
243