In 1969 John Rendall and Anthony Bourke bought a lion cub at Harrods, London, and raised him in their Chelsea flat.

"Get here before sunset." The warning loomed in my mind as we raced the fading light across the red, rugged landscape outside Port Elizabeth.

The Van der Merwe family share their Namibian home with 400 animals and, occasionally, Angelina Jolie. Britt Collins reports.