Technology...

Mobile games are the fastest growing segment of the electronic gaming market. Now, a new cell-phone game promises fun gameplay while teaching users about the challenges faced by Rwanda's endangered mountain gorillas.

"Silverback," a free mobile game produced for the conservation group Flora & Fauna International, offers game-play that mimics the struggles mountain gorillas face in the wild. The game follows a gorilla through his entire lifecycle. In the first level, you're a young gorilla separated from his family. Later, you have to defend yourself against rival silverbacks, find a mate, start a family, avoid poachers and snares, and find safe food and habitat.

The game is free to download (although your cell provider may charge for the data download). The developers hope that users will donate £5 (about $10) or more to help fund gorilla conservation efforts.

Mountain gorillas are one of the world's most endangered primate species, with only an estimated 700 members left.