Secrets of the Zoo: Tampa

David Attenborough embarks on a remarkable 500 million-year journey revealing the extraordinary group of animals that dominate our world, and how their evolution defines our human bodies.

Your host, a curious, open-minded adventurer, takes viewers all over the world to meet the inspiring women and men who maintain special relationships with animals.

From Executive Producer Bill Maher, The Failed Experiment is a six-part limited documentary series that offers an unprecedented look into the world of animal experimentation and the inspirational visionaries who are fighting against it.

A follow-up to the 1990 Radio 4 series in which the late Douglas Adams and Mark Carwardine travelled around the world in search of endangered species. 20 years later Stephen Fry and Mark Carwardine go back to see what has become of the animals in two decades, and to discover what has affected their fortunes.