Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
Allegedly, Chrysippus, the Greek philosopher, died of laughter after getting his donkey drunk and watching it try to eat figs.
47
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
The Pistol Shrimp can snap its claws together to create a sound of 218 decibels, louder than as supersonic jet at full speed. It only lasts for 1 millisecond. The snapping action also creates a bubble that is greater than 5000 Kelvin, close to the surface temperature of the sun.
21
Parrot parents "name" their children with a signature call.
112
It has been scientifically proven that stroking a cat can lower one's blood pressure!
456
The cat brain weighs about 30g.
167