Cats recognise the voice of their owner, but never evolved to care.
22
Tigers can see 6 times better at night than humans.
305
Penguins have a gland above their eye that turns saltwater into freshwater.
12
A banana slug can be 6-8 inches and their erect penis can be just as long. Also, their penises emerge from their heads. After sex, banana slugs eat each others penises.
17
Worker bees must visit around 4,000 flowers in order to make one tablespoon of honey.
5
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
By putting a frog in a bucket of milk, scientists following up on an ancient Russian way of keeping milk from going sour have identified a wealth of new antibiotic substances.
9