A group of unicorns is called a blessing.
304
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
Sloths take two weeks to digest their food.
243
Condoms were originally made of animal intestines or linen.
347
Cats recognise the voice of their owner, but never evolved to care.
22