Episodes categorised as 'Factual: Science & Nature' available now on BBC iPlayer

Neil Oliver visits Whitstable and ventures offshore to the remarkable Red Sands sea forts.

The Coast experts journey along the stunning south coast of England.

Miranda Krestovnikoff searches for the biggest sharks in British waters.

Euan follows the journey of the famous Edinburgh Christmas tree.

6/6. Ray Mears explores the unique cultures, skills and landscape of Canada's far west.

3/3. Dr Iain Stewart looks at how scientists can predict what changes global warming will bring

2/3. Iain interviews some of the key global warming sceptics, part of the 1990s counter-attack.

Jonathan starts this journey in a mine and then makes his way down to Ekaterinburg.

The Second World War freedom fighters who risked everything running the 'Shetland Bus'.

Mark Horton travels on Brunel's Great Western Railway along the stunning coast of Devon.

6/14. The wildlife of the Scottish Highlands, seen through the eyes of filmmaker Fergus Beeley.

1/3. Dr Iain Stewart traces the history of climate change from its very beginning.

A look at Llandogo Primary School in Monmouth, where the pupils grow their own food.

5/6. Ray Mears follows in the footsteps of British explorer David Thompson.

5/14. Natural World investigates the vital bond between animal mothers and their babies.

4/6. Ray follows in the footsteps of Arctic explorer John Rae.

4/14. A look at the lethal black mamba snakes in Swaziland and an unusual snake removal service.

3/6. Ray follows in the footsteps of British pioneer Samuel Hearne on his epic 1,000-mile trip.

3/14. Film following marine biologist Andrea Marshall as she studies manta rays up close.

2/6. Ray tells the story of the British fur trade company that opened up Canada.

2/14. A tale of life on the Zambezi River, set against the epic backdrop of Victoria Falls.

1/6. Ray explores Canada's vast Boreal Forest and unlocks the secrets of this forgotten world.

1/14. A portrait of the lives of black bears in northern Minnesota, with biologist Lynn Rogers.

2/10. A look at the strategies used by reptiles and amphibians to conquer their shortcomings.