A red kangaroo mother and baby belong to one of the hardiest species of animal athletes - but as this documentary shows, even they must battle to survive in the vast and inhospitable Australian Outback. The daunting challenges posed by the landscape are dramatically depicted over the course of a year in the kangaroos' lives

The story of the hurdles overcome by Owen Newman & Amanda Barrett, as they set out 14yrs ago to film cheetahs, leopards, servals, caracals and lions.

Big cat specialists Owen Newman and Amanda Barrett head for Brazil's Pantanal, the world's biggest wetland, to film jaguars in their natural habitat. Equipped with amphibious buggies, they venture deep into the wilderness, where the predators feast on caiman, peccaries, capybara and cattle. As the cameras begin to reveal their behaviour, the film-makers wonder who is stalking whom.

Many years ago lions thrived in the deserts of Namibia's Skeleton Coast, until they were exterminated by man. Six years ago maverick biologist Flip Stander discovered a tiny remnant population alive and well in nearby mountains, and started to study them. Their numbers have grown and they are now returning to the desert in increasing numbers. But if these lions are to continue roaming here, Flip will have to persuade local people that these lions are worth more alive than dead.