The most yolks ever found in one chicken egg was nine.
163
Cows can sleep standing up, but they can only dream lying down.
745
The flea can jump 350 times its body length, that is like a human jumping the length of a football field.
32
Dolphins sometimes have fun by blowing bubbles and creating rings of air underwater, which they then swim through.
17
The 'vintage date' on a bottle of wine indicates the year the grapes were picked, not the year of bottling!
38
The elephant brain weighs about 6,000g.
274
All bonobo chimpanzees are bisexual!
29
Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
6