The man was amazed by the discovery which could be more than 300 million years old. Find out what it is.
With synthetic lawns set to replace grass across an iconic US city, an Australian expert has raised several concerns residents should be worried about.
The seemingly innocuous act of creating rock stacks is damaging the ecosystem and and may see you fined $689 in Queensland. Find out why.
Find out why a WA offshore gas project will be challenged in the Federal Court over concerns it could harm the Great Barrier Reef.
Known to have existed until about 2000, two factors are believed to have killed off this genetically distinct population.
Flooding, bushfire and storms have struck the United States, as the globe continues to be impacted by climate change. See videos of the destruction.
As the nation faces an energy crisis, Labor’s resources minister Madeleine King says she hopes the Narrabri gas project goes ahead.
There's no reason global warming couldn't also be shortening the lifespan of humans, scientists believe. Find out more.
Dom Phillips and indigenous expert Bruno Pereira have been missing for over a week. See the latest development.
Urbanisation and climate change are contributing to the decline of bull shark habitat, but scientists say there is some good news.
The wife of journalist Dom Phillips has called on Brazilian authorities to do more to find the 'love of her life'. Read more.
A report has grouped Australia with China and Russia as the world's worst coal-mine emissions polluters. Find out more.
Some people tried using zip ties on bins to prevent their street getting littered with rubbish. But will it work?
While plastic regularly kills whales in the Phillipines, this 70-year-old male died of something less common. See out what investigators found.
For the first time, scientists have mapped the underwater volcano following the disastrous eruption and tsunami in Tonga. What they found blew them away.
At least four koalas are dead, and others are feared injured, following a Victoria Government burn-off in the Mount Richmond National Park.