As David Shukman's stint as the BBC's Science Editor draws to a close, he reflects on the conversations he's had with Sir David Attenborough over the years.
Cutting-edge DNA techniques are being used to track the size and health of the population in mid Wales.
Stephen speaks to Paula Kahumbu, CEO for WildlifeDirect. Her campaign to protect elephants and endangered species asks Kenyans to prioritise protection of the country’s wild spaces – is it working?
Costa Rica and two best friends who grow coral are among the five winners. The annual awards - created by Prince William - reward projects trying to save the planet.
A unique celebration of one of Earth's most iconic birds, featuring all 18 species in footage from New Zealand, Cape Town, the Galapagos Islands and Antarctica.