Ants make up 1/10 of the total world animal tissue. The total biomass of all the ants on Earth is about equal to the total biomass of all the people.
85
The heart of a mouse beats 650 times per minute!
53
It's possible to lead a cow upstairs, but not downstairs.
50
Squirrels will sometimes adopt orphaned baby squirrels that they’re related to.
12
Slugs have 4 noses!
17
Frogs sometimes eat enough fireflies that they themselves glow.
71
Apple seeds are poisonous!
27
