Bears
Bear guide Derek Stonorov believes grizzly bears are not as fearsome as many people think. Read more
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Series 4
Bear guide Derek Stonorov believes grizzly bears are not as fearsome as many people think.
Salmon
A couple who study the spawning grounds of the world's last great salmon run.
Tundra
Grant Sonnex talks to Pete Abraham, a Yupik Eskimo who grew up in a tiny settlement.
Series 5
Microbes
Writer and naturalist Paul Evans meets Prof Lynn Margulis.
Loons
Paul Evans goes to Maine to meet a conservation biologist who has spent a life with loons.
Ospreys
Paul Evans meets Roy Dennis, who has spent a life with ospreys, in the Scottish Highlands.
Series 6
Insects
Mary Colwell meets a doctor who has a passion for creepy crawlies.
Water Voles
Mary Colwell meets a water vole warrior determined to save them from disappearing.
Corals
Mary Colwell meets a man who has spent his life searching for corals on the Devon coast.
Mosses
Mary Colwell meets a man whose life revolves around tiny green plants.
Seals
Mary meets grey seal expert Sue Sayer in Cornwall to observe the animals.
