Cats and dogs can hear ultrasound.
350
Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
Parrot parents "name" their children with a signature call.
112
Dolphins sometimes have fun by blowing bubbles and creating rings of air underwater, which they then swim through.
17
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