Lions can reach speeds of up to 81 kph (50 mph) but only in short bursts because of a lack of stamina.

Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.

Television stations hung banners at the 2004 Democratic National Convention, including Al-Jazeera, until it was noticed and taken down.

A M A Z I N G   F A C T S