Elephants can weigh 7 tons and charge at 25 miles per hour. Ex-special forces soldier Peter Lamberti gets close to the giants.
At the Mala Mala Game Reserve in South Africa Kim Wolhuter films a clan of wild hyenas on a...(03:01)
Filmmaker John Varty searches for one of the most elusive and powerful cats on Earth, the leopard.(03:11)