A baby whale is called a calf. Whales form groups to look after calves and feed together. These groups are often made up of all female or all male whales.

Braces were first invented by Pierre Fauchard in 1728. The braces were made by a flat strip of metal, which was connected to the teeth by thread.

Early Romans used to use porcupine quills as toothpicks.

AMAZING FACTS