It would take about 1,200,000 mosquitoes to fully drain the average human body of blood.
217
Gorillas can catch human colds and other illnesses.
205
Female kangaroos have three vaginas.
2
The sound of a tiger's roar can travel a distance of up to 2 miles (~3 km).
255
There's a young hippo and a 130+ year old tortoise in a Kenyan wildlife preserve who are best friends and they even sleep and play together.
40
There was a bear called Wojtek who was adopted by Polish soldiers during WW2. It carried ammunition, wrestled with soldiers, and drank beer.
40
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