New species are being discovered all the time, which only adds to the problem of knowing how many there are on the planet today. It also helps to know what we mean by species.
A bold new approach could protect endangered animals.
Bruce Willis saved the Earth with a nuclear weapon in the 1998 film Armageddon, but the law would need to change for him to do it now.
A series of new studies sheds light on the population crash and extinction of the giant birds, lemurs and more that roamed the island until around A.D. 700-1000.
Chytrid fungus has caused declines in 501 amphibian species, according to a new analysis. Most of the damage happened in the 1980s, before the fungus itself was even discovered.
A psychologist explains why we should accept that we will never live in the Anthropocene.
From the reappearance of giant bees to sightings of clouded leopards – can we ever be certain that a species has died out?
It's often said you need to look to the past to learn about the future, and that's what the fossil record can tell about how the Tasmanian Devil survived in the past on mainland Australia.
Mathematic models are becoming more sophisticated and now they could actually predict how likely a species is to die out.
A recent report warned that insects 'could vanish by the end of the century'. Here's why that would cause a collapse of nature.
Ecosystems can collapse suddenly and totally. Frozen zoos are trying to create archives of genetic material to prevent total extinctions.
There are over 100 species of wild coffee, but only a few supply the world's morning caffeine kick. Sadly, climate change and disease could be about to change that.
Climate change threatens to cause mass extinctions – but how, exactly? New research suggests male fertility may be the weakest link.
The loss of the Siberian unicorn shows just how vulnerable some animals can be to environmental change that can impact on their food supply.
Carving up ecosystems or opening them to development puts the survival of species at risk.
Lee's research identified the cause of mysterious and devastating mass frog extinctions that spread across the world starting in the 1970s: it was a skin fungus.
It's quite hard to tell when a sea creature is extinct – there's always hope it will turn up somewhere.
Death is inevitable for individuals and also for species. With help from the fossil record, paleontologists are piecing together what might make one creature more vulnerable than another.
How can there be boom in new species discoveries while others are dying out at unprecedented rates?
A new analysis explores what making space for nature means for our global food production systems.