Topics and personalities from the animal world discussed by CHARLES COLES and LYALL WATSON
Hedgehog Tracking: PATRICK MORRIS is studying the movements and habits of these mammals in a London park
Big Cats: Lion cubs are one of the most appealing attractions in zoos. Are lions easy to breed? DAVID CABOT reports from Dublin Zoo—one of Europe's most successful 'lion' zoos-and from the lions at Longleat
Big Apes: VERNON REYNOLDS on how chimpanzees are used as human understudies in space research
Small Birds: Charles Coles with some of Victor Lewis 's sounds of hungry nestlings
Produced by John Sparks