The Only Great Ape In Asia

Patrick Morris and Barrie Britton revisit an orang-utan colony in Sumatra.

• 30 mins

Life in the Trenches

Julian Partridge and Ron Douglas explore thousands of metres deep in the Pacific Ocean.

• 30 mins

Series 1

A Hundred Years of British Birds

A programme marking the centenary of the influential journal British Birds.

• 30 mins

Series 2

The Vogelkop Bowerbird

A close encounter with two birds that revealed an exquisite courtship performance.

• 30 mins

Series 2

Access For All?

Paul Evans visits Dorset to find out why heathland birds don't welcome hordes of visitors.

• 30 mins

Series 2

The Future of the Amazon

Paul Evans investigates the Amazon, the biggest area of rainforest left on Earth.

• 30 mins

Series 2

Alien Attitudes

Are we being consistent in our approach to non-native plants and animals?

• 30 mins

Series 2

Decline In Migrants

Brett Westwood searches for the reasons behind the declining numbers of migrant songbirds.

• 30 mins

Series 2

Seabirds - Canaries on the Cliffs

Chris Sperring explores declining seabird numbers and asks if it represents a crisis.

• 30 mins

Series 2

Pollination

Paul Evans asks if enough is being done to conserve honeybees.

• 30 mins

Series 3

Episode 1

Brett Westwood encounters the large blue butterfly on the Somerset Downs.

• 30 mins

Series 3

Restoring Heathlands

Brett Westwood investigates the potential for restoring large areas of heathland.

• 30 mins

Series 3

The Sea of Cortez

Tessa McGregor explores the Sea of Cortez, a whale and dolphin hotspot off Mexico.

• 30 mins

Series 3

Manx Marine Nature Reserve

Brett Westwood asks how feasible it is to set up a conservation area in the sea.

• 30 mins

Series 3

Mud, Birds and Tides: The Severn Estuary

Chris Sperring discovers that the Severn Estuary is a vital nursery ground for marine fish

• 30 mins

Series 3

Calf of Man

Brett Westwood visits the Calf of Man, a rugged island to the south of the Isle of Man.

• 30 mins

Series 3

In Search of Jenny

The search to find the first gorilla brought out of Africa to live in captivity.

• 30 mins

Series 3

Insect Soundings

An unusual sound safari, eavesdropping on the world of insect sounds.

• 30 mins

Series 3

Migrating Stones

A poet and a stone are companions on a most unusual journey to Australia.

• 30 mins

Spring Songbird Special

Grant Sonnex presents the programme from the RSPB's reserve at Minsmere in Suffolk.

• 30 mins

The Plum Prospects for Orchard Conservation

The Plum Prospects for Orchard Conservation: Brett Westwood on new conservation measures.

• 30 mins

Unearthing Buried Rivers

Paul Evans reports on the rebirth of the urban waterway.

• 30 mins

The Beetles: Here, There and Everywhere

Paul Evans explains his fascination with beetles and celebrates their myriad world.

• 30 mins

The Spring Blog

A colourful diary of spring created by Paul Evans.

• 30 mins

The Answer's in the Soil

Paul Evans discovers the importance of soil to the quality of our future environment.

• 30 mins

A Country Fit for Cranes

Michael Scott visits Lakenheath Fen, a new habitat where a pair of cranes bred last month.

• 30 mins

Spring Questions

As part of Springwatch, Brett Westwood answers listeners' questions about wildlife.

• 30 mins

Series 4

Britain's Rarest Trees

Brett Westwood joins botanist Tim Rich to look for the whitebeam trees.

• 30 mins

Series 4

Juan Fernandez Islands

Paul Evans visits the Juan Fernandez Islands in search of its firecrown hummingbird.

• 30 mins

Series 4

Wildlife Gardening

Paul Evans questions the benefits of gardening for wildlife.

• 30 mins