The sex of a baby crocodile is determined by the temperature in the nest and how deeply the eggs are buried.

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.

The same amount of calories are burned by doing 6 sessions that are 5 minutes each of an activity and doing 1 session of that activity for 30 minutes.

AMAZING FACTS