The elephant brain weighs about 6,000g.
274
Cows as they are today never existed in the wild and were domesticated from aurochs some 10,500 years ago.
6
Some older/less efficient worker termites will develop 'backpacks' of toxic chemicals that explode when the termite is threatened. They are essentially used as suicide bombers when the colony is being attacked.
8
Squirrels will sometimes adopt orphaned baby squirrels that they’re related to.
12
In 1955, the citizens of São Paulo were so upset with their government that they elected a rhinoceros named Cacareco (meaning rubbish) to the city council in protest, with over 100,000 votes.
18
Domestic pigs average a top speed of about 11 miles per hour.
182