Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
Only 3% of bird species have penises.
0
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
When you shave a guinea pig it looks like a little hippo.
19
The Lion's Mane Jellyfish is the largest jellyfish in the world. They have been swimming in arctic waters since before the dinosaurs (over 650 million years ago).
12
Giant Anteaters' front legs look like a panda.
48
Mosquitoes don't just bite you, they also pee on you.
11