At 188 decibels, the whistle of the blue whale is the loudest sound produced by any animal
34
A duck's quack doesn't echo, and no one knows why.
173
The male praying mantis cannot copulate while its head is attached to its body. The female initiates sex by ripping the males head off.
85
It has been calculated that a single breath from a mature blue whale can inflate up to 2,000 balloons.
492
A species of earthworm in Australia grows up to 10 feet in length.
10