Nervous dogs wag their tails to the left, and happy dogs to the right (from the dog’s point of view) – and fellow canines pick up on this lop-sided tail language.
10
The sound of a tiger's roar can travel a distance of up to 2 miles (~3 km).
255
It would take about 1,200,000 mosquitoes to fully drain the average human body of blood.
217
Sharks, like other fish, have their reproductive organs in their chests.
248
Urechis unicinctus is a species of marine spoon worm that is widely referred to as the ‘penis fish’.
2
Worker bees must visit around 4,000 flowers in order to make one tablespoon of honey.
5
Sharks have been on the planet longer than trees.
14