Only male fireflies can fly.
46
7,000 new insect species are discovered every year.
30
By feeding hens certain dyes they can be made to lay eggs with multi-colored yolks.
40
A duck's quack doesn't echo, and no one knows why.
173
Honeybees never sleep.
276
Rats multiply so quickly that in 18 months, two rats could have over a million descendants.
33
The average housefly lives only two weeks.
39
A rat can go without water longer than a camel can.
26