The idea that the dinosaurs were wiped out by a giant asteroid was ridiculed – until the remains of a giant crater were found deep underground.
Species lost from the eastern forests of the U.S. – from left to right: Ivory-billed Woodpecker, Passenger Pigeon, Carolina Parakeet and Bachman’s Warbler.
Alexander C. Lees ©Cornell University Museum of Vertebrates
The extinction threat you haven't heard of: several South American birds teeter on the brink of existence due to habitat loss. And history is not the best guide for how to save them.
Coral bleaching in March 2016. Rapid rises of greenhouse gases in the past have been linked to major extinctions in the oceans.
XL Catlin Seaview Survey
Carbon dioxide is rising faster than any time in the past 66 million years. Rapid rises in the past have been linked to mass extinctions.
Jie Yang (Yunnan University, China)
Scientists have uncovered one of the most detailed and well-preserved nervous system fossils ever found.
Extreme fire events are pushing Australian wildlife towards extinction.
Recent bushfires have not just destroyed human lives and property, but pushed some species further down the path to extinction.
Giraffes are under threat due to habitat fragmentation and degradation.
Giraffes are facing a silent extinction and need conservation strategies to help them.
The new apes in town.
20th Century Fox
Why we won't see a Planet of the Apes when humans are gone.
An artist’s reconstruction of what the giant bird Dromornis would look like. Genyornis would be similar but slightly smaller.
Our entire knowledge of one of Australia's extinct ancient giant birds is flawed because experts have been looking at remnants of the wrong egg the whole time.
Doomed dinos, but these Psittacosaurs weren’t killed by volcanic ash.
Was there a 'dinosaur Pompeii' in China? New research questions the claim.
One of the several precious giant tortoises recently found on Volcano Wolf, Galápagos Islands.
When 100-year-old giant tortoise Lonesome George died in 2012, the world thought his species was lost forever. We went to the Galápagos Islands looking for 'extinct' tortoises – and we found them.
Fragments of woodland surrounded by cleared land in south west Australia.
Australia may have reputation for vast areas of wilderness, but in reality the continent's ecosystems have been chopped and diced. Now we need to protect what's left.
Sudan, the last remaining male northern white rhinoceros, meets the Maasai Cricket Warriors.
Thomas Mukoya / Reuters
Their flimsy chances rely on the eggs and sperm from the remaining three elderly animals, combined with frozen DNA from dead rhino.
Coelacanth: extinct for millions of years … then found alive.
By Alberto Fernandez Fernandez, Wikimedia Commons
Sometimes extraordinary species really do appear to come back from the dead.
It’s high time we gave Australian wildlife a helping hand.
AAP Image/Sam Mooy
A 21st century government would put the environment on at least an equal footing with the economy. That means no more extinctions, and no more putting ourselves before wildlife or future generations.
Thylacines are extinct - and perhaps we just have to accept it.
Many ecosystems have changed so radically that it is no longer possible to restore them to what they once were and in other situations it is not appropriate.
Grey squirrels hate these reclusive, cat-sized predators.
The reefs of Indonesia - part of the Coral Triangle - could lose many of their species thanks to climate change.
How will climate change affect life in the oceans? New research shows that the answer is likely good and bad.
A Steller sea cow skeleton: extinct in 1768.
Analysis of extinction rates over the past centuries shows that humans are causing the sixth mass extinction in the history of the Earth.
Hold on: before we bring dinosaurs back to life as in Jurassic World, we need to look at other extinct critters first.
Universal Pictures and Amblin Entertainment
Jurassic World is opening in cinemas this Thursday and again raises the idea of resurrecting extinct creatures. But there's plenty of other contenders before we even think of recreating dinosaurs.
More mines, more roads, as the government puts its drive towards economic development ahead of all else.
AAP Image/Alan Porritt
Amid talk of paths to surplus and investing in infrastructure, both sides of politics seem to have forgotten Australia's longstanding responsibility to govern sustainably, and not just for the economy.