Bird flu is decimating wildlife around the world and is now spreading in cows. In the handful of human cases seen so far it has been extremely deadly.

Once pushed to the brink of extinction by overfishing, bluefin tuna has experienced a spectacular rebound in recent years. But can it survive the onslaught of climate change?

Humpback whales have been making a conservation comeback – but warming seas are putting their recovery at risk.

Marine turtles spend almost their entire lives at sea – but little is known about the paths they take. Now, satellites are helping scientists map their movements.

The destruction a fire brings can be crucial for certain species to thrive. Meet the conservationists reviving the ancient art of "good fire".

As the Earth's rivers warm, salmon must either struggle to survive in a degraded habitat or move to cooler waters – but native Alaskan fishing practices are helping protect them.

South Africa's sardine run is a spectacle to behold as thousands of predators feast on sardine mega-shoals – but climate change and over fishing are putting it at risk.

Our skies are getting bumpier, making the need to understand and predict turbulence increasingly urgent. Researchers propose birds could provide clues.