Sylvia Earle

Jane Little talks to Dr Sylvia Earle from the USA. She is 78 and is nicknamed 'Her Deepness' because of her daring exploits beneath the sea. She is one of the world's great oceanographers and explorers. She led the first team of women ‘aquanauts’ on a two-week underwater expedition. She is also a great champion of the oceans, campaigning for their protection.