Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
6
If NASA sent birds into space they would soon die; they need gravity to swallow.
146
The poison-arrow frog has enough poison to kill about 2,200 people!
55
7,000 new insect species are discovered every year.
30
A mole can dig a tunnel 300 feet long in just one night!
24
An ant brain has about 250 000 brain cells. A human brain has 10,000 million so a colony of 40,000 ants has collectively the same size brain as a human.
118
One litter of kittens can be produced by more than one father.
57
Sheep can survive for up to two weeks buried in snow drifts.
260