The elephant brain weighs about 6,000g.
274
There wasn't a single pony in the Pony Express, just horses!
57
Armadillos can get leprosy.
13
A female ferret will die if it goes into heat and cannot find a mate.
143
According to scientific studies, a rat's performance in a maze can be improved by playing music written by Mozart.
46
Under extreme stress, some octopuses will eat their own arms.
198
Domestic cats hate lemons or other citrus scents.
33
At one 'feeding', a mosquito can absorb one and a half times its own weight in blood.
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