It would take about 1,200,000 mosquitoes to fully drain the average human body of blood.
217
A koi fish, named "Hanako", was owned by several individuals over many years and lived to be 226 years old, dying in 1977.
6
Sergeant Stubby was the only war dog to be promoted to sergeant through combat in WWI. He saved his regiment from surprise mustard gas attacks, found and comforted the wounded, and even once caught a German spy by the seat of his pants, holding him there until American Soldiers found him.
16
A scorpion can hold its breath for up to 6 days.
19
There is a sea snail that wears a suit of iron plated armor. It is the only known animal to use iron sulphide as skeletal material.
9
Sheep, goats, octopuses, and toads have rectangular pupils.
7
Ants tend to survive in a microwave because they find the coolest spot and wait!
17