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Insects

Mary Colwell meets a doctor who has a passion for creepy crawlies.

26 Mar 2012,·15 mins

Water Voles

Mary Colwell meets a water vole warrior determined to save them from disappearing.

27 Mar 2012,·15 mins

Corals

Mary Colwell meets a man who has spent his life searching for corals on the Devon coast.

28 Mar 2012,·15 mins

Mosses

Mary Colwell meets a man whose life revolves around tiny green plants.

29 Mar 2012,·15 mins

Seals

Mary meets grey seal expert Sue Sayer in Cornwall to observe the animals.

30 Mar 2012,·15 mins

Microbes

Writer and naturalist Paul Evans meets Prof Lynn Margulis.

15 Jul 2009,·30 mins

Loons

Paul Evans goes to Maine to meet a conservation biologist who has spent a life with loons.

22 Jul 2009,·30 mins

Ospreys

Paul Evans meets Roy Dennis, who has spent a life with ospreys, in the Scottish Highlands.

29 Jul 2009,·30 mins

Bears

Bear guide Derek Stonorov believes grizzly bears are not as fearsome as many people think.

11 Feb 2009,·30 mins

Salmon

A couple who study the spawning grounds of the world's last great salmon run.

18 Feb 2009,·30 mins

Tundra

Grant Sonnex talks to Pete Abraham, a Yupik Eskimo who grew up in a tiny settlement.

25 Feb 2009,·30 mins