The arched lower lip of a whale can often make it look like it is smiling! However, this isn't a "real" smile as the blubber in the head of the whale prevents the muscles of the face from reaching the surface.

Iguanas can stay under water for up to thirty minutes.

Scientists say that babies that are breastfed are more likely to be slimmer as adults than those that are not breastfed.

AMAZING FACTS