A photo of a mountain hare in a snowstorm that took the photographer several freezing weeks to capture has won this year’s BigPicture international nature photography competition

Sea turtles are nesting in record numbers across the world as humans stay inside to stop the spread of COVID-19. The turtles are thriving with crowd-free beaches and less pollution

Experts have discovered cold-blooded frogs once lived on a warm Antarctica 40 million years ago PLUS Australian scientists need your help for a frog-finding mission closer to home

Australia’s koala population has been cut in half in the past two decades, with conservationists warning our national icon is already extinct in some areas after devastating bushfires and drought

A 7m-long procession of caterpillars parading through Alice Springs is fascinating and touching them dangerous, but to the Arrernte people, it can be a sign of a harsh winter on the way

Wild animals including jaguars, goats and boars have started exploring quiet city streets across the world as humans stay inside during the coronavirus lockdown

Three-and-a-half-month-old twin polar bear cubs have made their public debut at a zoo in the Netherlands, but without the public because of coronavirus restrictions

Scientists studying plastic Lego blocks lost in a storm then washed up on the coast of southwest England find they could survive in the ocean for 1300 years

The leaves on deciduous trees turn forests, parks and gardens a rainbow of yellows, oranges, reds and browns. Why do leaves change colour? And why do the trees let them fall?

Scientists have been feeding waxworms polyethylene — one of the most common plastics used in shopping bags — and found that just 60 little caterpillars can eat more than 30 sqcm in a week

Five Australian photographers have blitzed the international Underwater Photographer of the Year competition with their incredible pictures of life under the sea

Scientists in Belgium are experimenting with larva fat to replace butter in waffles, cakes and cookies, saying using grease from insects is more sustainable than dairy produce

In his weekly series, award-winning cartoonist Mark Knight looks at how waste management has become a major issue in Australia and why it’s soon to create peak-hour traffic on bin night

Google has added 1000 new images to Earth View – a collection of the most beautiful landscapes from Google Earth. And a farmer’s marriage proposal makes it onto Google Maps

The temperature in northern Antarctica has hit 18.3C, thought to be a heat record on the continent best known for snow, ice and penguins

Risking injury and braving the cold, children as young as four race llamas across a high-altitude region of Ecuador each year to help save one of the most important wetlands on Earth

A raging megablaze has burnt one-fifth of the Australian Capital Territory as out-of-control bushfires also continue to threaten homes in NSW and Victoria

Swedish schoolgirl activist Greta Thunberg who became a household name after encouraging 4 million people to strike over climate change is named Time Magazine’s Person of the Year

Seaweed piled high on Queensland beaches has trapped at least one runner, who had to be rescued from the algae. While seaweed is not unusual, people have never seen so much at once

Scientists with an army of robotic drones and a fleet of backpack-sized inflatable pools are working to save the Great Barrier Reef as part of the world’s largest science and tourism group project

In our weekly series, award-winning cartoonist Mark Knight explains why he drew young climate change activist Greta Thunberg rowing rock band Coldplay to their next world gig

In our weekly series, award-winning cartoonist Mark Knight captures the helplessness of drought-affected Australian communities now caught in the path of catastrophic bushfires

Ice eggs the size of footballs have engulfed an entire beach in Finland in a rare weather event that requires ice, wind, water and freezing temperatures

In our weekly series, award-winning cartoonist Mark Knight explains why he drew Uluru as an indigenous character dreaming of a life without interference on spiritual land

Tenterfield — battling drought and, recently, bushfires — has struck it lucky with the discovery of underground water only 126 days before the town’s supply was due to run dry

A gripping action shot that captures “the perfect moment” between a Tibetan fox and a marmot has won its photographer the title of Wildlife Photographer of the Year

Astronauts have grown beef in a laboratory up on the International Space Station by 3D printing meat from cells harvested on Earth and sent up into orbit on a rocket

Critically endangered mountain pygmy-possums need your help to solve the mystery of the missing Bogong moths that have disappeared somewhere between Queensland and Victoria

Seven eggs from the world’s last two northern white rhinos have been successfully fertilised artificially, giving hope for a future baby rhino that could save the species from extinction

A city-sized, floating island spewed from an undersea volcano is heading for Australia’s coast. Rather than causing a disastrous collision, its arrival could help heal the Great Barrier Reef

World nations have called for giraffes to be added to the endangered species list as numbers in the wild continue to drop because of loss of habitat, drought and hunting

With poetry, moments of silence and political speeches about the urgent need to fight climate change, Iceland bade goodbye to its first extinct glacier

A tiny, wide-eyed koala has been named Australia’s cutest koala joey. And now she’s out of her mother’s pouch, her important work as an ambassador for her species’ conservation really begins

Worms, bees, birds, flowers and veggies are the stars of Australia’s stamp collecting month, when sustainable gardening and stamp collecting get together to grow something great

On the eve of National Tree Day, new research suggests planting a trillion trees could achieve a 20-year pause in global warming and that we have the available land to do it

Thirty endangered rufous hare-wallabies have been released in Australia’s Central Desert into a sanctuary created as part of a project building the world’s longest cat-proof fence

After several warm days with temperatures above 30C, residents of this Mexican city woke up to a winter wonderland and then set about trying to find their cars under all that ice

With teeth gnashing and muscles rippling, two big Maasai lions wrestle in a dramatic fight for supremacy captured in a sequence of incredible images in Africa

A photo of a pack of sled dogs appearing to walk on water in Greenland has shocked the world, showing the result of a massive ice melt on an unusually warm day last week

This year’s World Environment Day theme is air pollution, which is causing ill health and shortening the lives of millions. There are simple things we can all do to help clean up our air

As whale watching season begins in Australia, everyone is on the lookout for a very special white humpback whale who has been cruising the east coast every year for up to 30 years

It’s a photography contest that aims to inspire the viewer to protect life on Earth and the winning entries are nothing short of breathtaking

The creators of the world’s biggest indoor rainforest have unveiled their plans to build a massive international eco-tourism attraction on mining wasteland in Australia

Farmers, their families and animals across Australia are doing it tough with worsening drought conditions. Students can now Adopt A Farmer to lend a helping hand to those most in need

Hermit the joey koala has been saved by a vet and a surrogate koala mother named Crumble in a daring medical procedure at an Australian wildlife sanctuary

An Australian hairdresser is turning plastic shampoo bottles into 3D-printed prosthetic limbs, helping repurpose waste and giving a hand to those who need one

An Australian woman has found a lone kookaburra for sale in a cage in a US pet shop. Unfortunately, she’s not allowed to bring it home to its native habitat

Join the global movement of hundreds of millions of people all turning off the lights as a way of working together to care for the environment

A heat lamp, a feather duster and lots of expert care has helped nine precious plains-wanderer chicks hatch and thrive, an important species-saving step

People who love pink are flocking like flamingoes to take selfies in front of a lake in Melbourne dyed by a population explosion of algae

A major oil spill in the Solomon Islands is moving towards the nearby UNESCO World Heritage Area, with fears of a looming environmental disaster

After an 8-4 vote by Hobart councillors, the city is set to become Australia’s first to ban single-use plastics including straws, sauce packets and cups