Natural Wonders

No beds, more birdsong: why outdoor sleep can make for better slumber which continues after you return home.

An island colony whose koalas are free of chlamydia could help save the wider population from the deadly disease.

In an extreme environmental and political climate in remote Colombia, one maverick village has relied on homegrown inventions to survive.

The unstoppable golden oyster is ripping through woodland, after escaping from cultivation. As it runs riot, mushroom enthusiasts are rescuing the native fungi in its path.

In the brutal world of deep caves, bacteria live in a miniature world of terror. The weapons they have evolved can defeat antibiotics – but now they are inspiring powerful new drugs.

Twenty years on, relive the iconic scene from Sir David Attenborough's Planet Earth that changed our understanding of how polar bears adapt to survive.

From bone-eating snot-flowers to snowboarding scale worms, when a whale dies it becomes a colossal island of nutrients – attracting weird and wonderful creatures to feast.

Decades after its release into the wild, a super-ageing, bone-crunching vulture called Balthazar reveals a major conservation success.

The fossilised bones of our ancestors remain silent. So, how can we possibly imagine what our earliest languages sounded like?

A photographer captured this extraordinary site where whales' bodies lie in the shallows, with troubling repercussions for the deep oceans.

In a historic former Soviet reserve in the magnificent Uzbek mountains, Michaela Strachan and India Latham find rare signs of the world's most elusive feline.

In the face of rising emissions from data centres, researchers are turning to micro-explosions in glass, and using DNA to solve big data's big problem.

Municipalities across the world are clearing their billboards of flight ads, SUVs, cruise ships and petrol cars in an attempt to cut emissions.