Serengeti Year 3 (DVD)

The real-life animal drama set in a spectacular corner of Africa's Serengeti returns with even bigger, bolder stories and endearing new characters. Dawn breaks across the lush Serengeti plain. But paradise is fleeting as the animals face fresh challenges. Kali the lioness and Bakari the baboon may seem safe in their rock fortresses, but with rivals encroaching on all sides, their future hangs in the balance. Out on the plains, Duma the cheetah faces his destiny. And down by the river, baby hippo Mafuta strikes up an unlikely friendship with the crocodile Magamba.

• natural history