Environment
"By the next day, his body had been entirely dissolved by the heat and acidity…" 10 deadliest national parks in USA
If you're thinking of visiting one of these US national parks, think twice and prepare accordingly - some of them are more dangerous than others.
It's only the size of 4 tennis courts… yet it could be the oldest place on Earth and home to some of the world's most formidable apex predators
It’s about the size of Spain, stretches 800km – and protects the planet from a whopping 5 metres of rising sea levels
The Ross Ice Shelf is in one of the most remote places on Earth, yet it holds enormous sway over coastlines thousands of miles away.
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“It swam a colossal 3km to get there” – Surprising creature spotted on Alcatraz
In 2026, an unexpected animal swam from Angel Island to Alcatraz
"Water will evaporate, leaving a dry barren surface - it will become an even hotter version of Venus…" 10 ways Earth – and life on it – could die
T.S. Eliot wrote in his poem The Hollow Men that the world would end “not with a bang but a whimper” – the question is, was he right?
It contains over half of Earth’s water and all of the continents could fit into its basin in one mega-puzzle
The world’s largest ocean is home to incredible wildlife and is crucial to the Earth’s climate system
"It’s estimated that 35,000 creatures died on this beach…" 10 deadliest beaches on the planet including Skeleton Coast – world’s largest ‘ship graveyard'
It straddles two US states, contains 15,000 alligators, and is home to a snake as long as a bed
Okefenokee Swamp is the largest blackwater swamp in North America – and UNESCO's newest World Heritage Site.
There’s a cave in Kentucky that’s 426 miles long, 118 metres deep – and fish-eating spiders lurk in it
Mammoth Cave is the longest known cave system in the world – but where is it?
They contain a quarter of all freshwater on Earth – but home to hundreds of ocean-like creatures
The sprawling African Great Lakes support a high number of endemic species
It’s large enough to swallow a skyscraper, wide enough to fly a jumbo jet through, and is filled with underground clouds and a river
Hang Son Đoòng is the world’s largest natural cave and remained undiscovered until 2009
10 sinking islands that could be lost forever…
There are thousands of islands that are threatened by rising sea levels – these are just some of those that could be lost forever
This mysterious 8000km 'wall' stretches across Africa – but it isn't what most people think…
Predators, prey and parasites discovered 1,640ft below North America's Great Lakes
A team of researchers from the University of Michigan has just discovered rocks and water teeming with fungi, segmented worms and 'water bears' hundreds of feet below Earth’s surface.
It contains some of the world’s most endangered mammals and can grow to a size larger than Austria
The Sudd is the largest tropical wetland in Africa and is home to endangered elephants, antelopes and prehistoric-looking birds
1,900 giant sequoia trees saved from death in California. This is how
Prescribed burns prevented almost two thousand giant sequoias from dying when wildfires tore through the Sequoia and Kings Canyon National Parks in 2020 and 2021 – and they could help more trees survive wildfires in the future, new study suggests.
Its name comes from the 'grunting' noise – like hungry pigs slurping their slop – made by the giant churning gyre that's claimed a dozen sailors' lives…
The Old Sow is the largest tidal whirlpool in the western hemisphere
Researchers sawed samples from a remote island in Antarctica. They found a “hidden diversity” of life
Surprising signs of life have been uncovered in one of the most remote locations on Earth
It’s the largest, yet most remote, continent in the world. But who’s responsible for it?
Technically, no single country owns Antarctica. But it’s complicated...
“Some believe that Gibraltar Falls was 1,000 times higher than Niagara Falls.” This could be the largest flood on Earth of all time
The Zanclean Flood, which is theorised to have occurred 5.33 million years ago, refilled the Mediterranean Sea
China's giant sinkholes are a refuge for a rare tree – but they're also cutting off its escape route
These enormous depressions offer an endangered species of magnolia tree shelter from heat and drought, while also posing genetic risks that could limit its long-term survival, according to a new study.
"Parts of it have so little oxygen, they are considered ‘ecologically dead.’" 10 most polluted, toxic rivers on the planet
Rivers are vital for life. They provide fresh water for drinking and food production. They are homes for wildlife, reduce the risk of flooding and help to mitigate the effects of climate change. Yet, they are under threat.
“It’s alien in every sense of the word.” In sulphuric caves too deadly for humans, living snot-like slime drips from the ceilings
In a clip from the BBC’s Wonders of the Solar System, Brian Cox visits an ‘alien’ within a cave that’s a death trap for humans
A 6,190m giant rises from the Alaskan wilderness. It's the highest mountain in North America. Here's what lives there
Spanning six million acres of rugged wilderness, Denali National Park is home to North America’s highest peak – and a cast of incredible, cold-loving creatures.
