Greyhounds have the best eyesight of any breed of dog.
28
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
Dolphins can rapidly heal from extreme injuries, such as shark bites, and regenerate their original body shape.
19
The difference between antlers and horns is that antlers are shed each year and are made of bone while horns are kept for life and are made of living tissue and bone with a sheath that is very similar to human finger nails.
10
The heart of a mouse beats 650 times per minute!
53
A dragonfly has a lifespan of 24 hours.
24
Ants have tiny magnetic compasses in their antennae which help them navigate.
9