Sea otters had been absent from this Alaskan national park for at least 250 years. By marrying math and statistics, scientists map this animal's successful comeback.
Animals shed bits of DNA as they go about their lives. A new study of the Hudson River estuary tracked spring migration of ocean fish by collecting water samples and seeing whose DNA was present when.
The world's biggest desert used to be green, lush and full of hippos. A new theory suggests humans could have tipped the environment over the edge.
In North-east India, children of the Khasi Hills (Meghalaya) learn slash and burn cultivation, an intergenerational yet controversial indigenous practice.
March Mammal Madness, a tournament of imaginary contests between pairs of mammals, makes science irreverent and fun. The event has thousands of fans and is used in hundreds of classrooms.
Every new batch of bees needs the equivalent of eight hectares of lavender fields to prosper.
We need micro-environmentalists to fight for the cause.
We should be building wildlife bridges on the US-Mexico border – not walls.
During bird irruptions, hundreds or thousands of a single species show up outside their normal territory. Most of what we know about irruptions comes from data collected by citizen scientists.
In Switzerland, specific and often costly environmental policies are put to test through direct democracy.
Buildings, thinkers, books, films and works of art can ask central questions about how to live on this planet and its consequences.
A new exhibition exploring the relationship between birds and humans is variously gaudy, delightful and disturbing. We sent two ecologists along to review the show.
How science is solving one of the natural world's greatest and most tragic puzzles.
Study shows the footprint of climate change is already vast and that species are trying to adapt to rising temperatures.
Fire has been viewed as the main protagonist in creating Africa's iconic savannas. However, new research shows that browsing animals created savannas millions of years before fire became important.
Bird diversity may be the secret to forest resilience.
One species of bat is able to switch from hearing to echolocation when there's too much noise, according to new research.
Soil is more than just dirt. It's a complex ecosystem and if it's healthy your plants will be happier.
Nature conservation is becoming another way to make money.
Rats foul our food, spread disease and damage property, but we know very little about them. A biologist explains how he tracks wild rats in New York City, and what he's learned about them so far.