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The Underwater Architects

Lionel Kelleway is with Ian Wallace looking for caddis in Lake Windermere. From 2007

• 22 mins

Wild Boar

Lindsey Chapman updates this Living World on wild boar in Gloucestershire. From 2007

• 22 mins

Rockhopper Penguin

Lionel Kelleway encounters a colony of 5,000 Rockhopper penguins in the Falkland Islands.

• 22 mins

Sea Lion Island

Lionel Kelleway travels to the Falkland Islands in search of amorous marine mammals.

• 22 mins

Mollymawk Manor

Lionel Kelleway travels to the Falkland Islands in search of the mollymawk.

• 22 mins

Southern Sea Shores

Lionel Kelleway travels to the Falklands to learn about marine life in the South Atlantic.

• 22 mins

Johnny Rook - A Lovable Rogue

Lionel Kelleway travels to the Falkland Islands in pursuit of Johnny Rook, the cara cara.

• 22 mins

Marsh Harriers

Lionel Kelleway gets very close to the marsh harrier.

• 22 mins

Grass Snakes

Lionel Kelleway tries to get close to the grass snake, Britain's largest native snake.

• 22 mins

Starfish

Marine biologist Peter Heyward and Lionel Kelleway search for starfish.

• 22 mins

Ancient Orchards

Lionel Kelleway is guided by two National Trust experts around a 100-year-old orchard.

• 22 mins

Cuckoos

Lionel Kelleway heads to Dartmoor to get close to a juvenile cuckoo and its foster parents

• 22 mins

Heath Fritillary

Lionel Kelleway visits a valley in Exmoor National Park in search of a rare butterfly.

• 22 mins

Great Bustards

Lionel Kelleway finds out about a programme to re-introduce the Great Bustard to Britain.

• 22 mins

Grassland Meadows

Lionel Kelleway is taken to some special grassland to see its wild flowers.

• 22 mins

Sika Deer

Lionel Kelleway heads to Purbeck to see sika at the start of the rutting season.

• 22 mins

Dartford Warbler

Lionel Kelleway visits the Arne RSPB reserve in Dorset to see the rare Dartford warbler.

• 22 mins

Autumn Ivy

Lionel Kelleway explores the important benefits of ivy to British wildlife.

• 22 mins

Tufty of Thirlmere

Lionel Kelleway searches for his own autumnal 'tufty' red squirrel in the Lake District.

• 22 mins

Pike

Lionel Kelleway goes fishing for a fearsome predator, the pike.

• 22 mins

Cave Spiders

Lionel Kelleway explores some very dark cellars in search of some very big spiders.

• 22 mins

The Deer Park

Lionel Kelleway discovers a metropolis of ant hills in a Deer Park in Durham.

• 22 mins

Herons

Lionel Kelleway travels to the RSPB's Ham Wall nature reserve to look for heron.

• 22 mins

Crayfish

Lionel Kelleway investigates the plight of our largest freshwater crustacean.

• 22 mins

Junipers

Lionel Kellaway asks why the junipers on Porton Down are under attack.

• 22 mins

Rare Reptiles

Lionel Kellaway gets close to a smooth snake and sand lizard, our rarest reptiles.

• 22 mins

06/06/2010

Lionel Kellaway encounters the loudest amphibian in Europe, the natterjack toad.

• 22 mins

13/06/2010

Lionel Kellaway witnesses the performance of early migrant birds on Dartmoor.

• 22 mins

Nest Finder of Dartmoor

Lionel Kelleway and Mark Lawrence hunt for birds' nests hidden on Dartmoor.

• 22 mins

Harbour Seals

Lionel Kelleway enjoys the rare spectacle of harbour seals pupping in Loch Fleet Scotland.

• 22 mins