Environment
Why is the ocean salty?
Beki Cooper explains why our seas are salty when our rivers aren't
Frogs are boiling – we need to turn the temperature down, warn scientists
Further increases in global temperatures could impact nearly 400 amphibian species, new study finds.
Enormous drones sent on mission over English moors – they could help save one of Earth's most threatened ecosystems
75,000 native tree seeds have been dropped by drones in Bodmin in an initiative that may prove to be vital in protecting temperate rainforests.
Camera traps reveal formidable animal rampaging through rare monkey puzzle forests in Chile
Researchers say the large invasive mammals pose a threat to endangered monkey puzzle trees, as well as other wildlife in the Patagonian Andes.
Earth's oldest meteorite crater discovered in Australian outback – here's what scientists found inside it
Researchers say the 3.47-billion-year-old impact crater could help explain how life on Earth began.
Has Antarctica ever been ice-free? Why the coldest place on Earth hasn't always been blanketed by snow
It's the coldest place on Earth and one of the most hostile continents for wildlife, but has Antartica always been covered in ice?
Egyptian wildlife paradise, home to many different endangered species, could be lost forever if illegal developers have their way
Environmentalists and the local community hope to save the uniqueness and importance of the whole of Wadi El Gamal.
‘Biggest clone on Earth’ discovered in the Baltic Sea
The enormous clone is more than 300 miles long – but researchers say its future is uncertain.
When do seas become oceans?
Know how a sea differs to an ocean? We explain
Mystery donor’s £17.5m gift will create rewilding showcase in the Highlands, expanding wildlife habitats for plants and animals
The largest donation in the Scottish Wildlife Trust’s history has enabled the purchase of a site bigger than the city of Dundee.
"Lynx have become political pawns in the culture war”: backlash as Sweden plans to kill more than 100 animals
There are currently around 1,300 lynx living in Sweden.
Grassland restoration is delivering peace for humans and wildlife in southern Kenya
Researchers surveyed more than 1,500 households in the Chyulu Hills where 11,000 hectares of grassland have been restored.
"Wildlife thrives with the return of beavers" – UK government gives go ahead for more beavers to be released into the wild
Applications to return Eurasian beavers into river catchments in England will now be accepted, the government has announced. Wildlife groups say it will pave the way for this native species to roam wild in British rivers and lakes once more
How many trees are there in China? Scientists just counted them and here's what they found
The researchers discovered that there are roughly 100 trees for every person living in China.
300,000 tonnes of unexploded munitions were dumped in the Baltic Sea in the wake of Nazi Germany – now scientists are worried
The relic munitions, sunk to the bottom of the Baltic Sea at the end of the Second World War, are releasing potentially harmful toxic chemicals, say researchers.
World's biggest iceberg on collision course with South Georgia – here's what might happen next
A mega-iceberg from Antarctica is heading for the remote South Atlantic Ocean island – an important breeding ground for colonies of penguins, seals and albatrosses.
The trophic cascade reshaping the great valleys of Yellowstone National Park
A two-decade-long study has revealed remarkable examples of ecological recovery since the reintroduction wolves to the park in the 1990s.
Solar farms managed for nature boost bird abundance and diversity, new study finds
Research by the RSPB and the University of Cambridge has shown that well-managed solar farms can provide nature with "relief from the effects of agricultural intensification".
16 otherworldly images from Underwater Photographer of the Year 2025
From majestic whales and colourful reefs to eerie shipwrecks and prehistoric river fish, we look at some of the winners from this year's competition.
Blazing star discovered in cloud forests of Peru
A new and striking species of plant from the blazing star family has been found in the high-altitude forests of the Peruvian Andes, highlighting the powerful role citizen science can play in conservation.
Genetic mutation discovered in rare Italian bears – and it could help save them
Only around 50 critically endangered Apennine brown bears remain in the rugged mountains of central Italy.
Here’s what the first-ever detailed drawing of a deep-sea mountain looks like
The beautiful yet scientifically accurate illustration depicts the diverse life found on a little-known seamount in the central Pacific.
Like maggots on a wound, these surprising creatures could help heal dying coral reefs around the world
Scientists have discovered that a species of crab that feeds on the dying tissue of corals could help protect stressed reefs during heatwaves.
These lions were tracked for eight years through the vast plains of Zambia – now researchers have found something
The study was conducted in Zambia’s Greater Kafue National Park and involved 358 lions.