Episode details
Available for over a year
Biologist and director of London's Kew Gardens Ghillean Prance on why biodiversity is important for the future discoveries, but more fundamentally, for maintaining the planet's atmosphere. Also on the programme how a fad for fish chosen from a tank in restaurants threatens coral reefs, Asia's forgotten elephants and a lifeboat, called Ocean Defender, which rescues animals in trouble at sea.
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