While surviving a mass extinction, strange tusked animals called lystrosaurs may have faced repeated drought, "mummy" fossils suggest.
Find out everything there is to know about extinction and stay updated on the latest extinction news with the comprehensive articles, interactive features and pictures at LiveScience. Learn more about amazing discoveries scientists are making as they uncover the causes and other details of mass extinctions throughout history.
Earth has experienced five mass extinction events over its 4.5 billion-year history. A sixth mass extinction is underway as a result of human-driven climate change.
An analysis of rocks exposed to the dinosaur-killing asteroid event reveals that the impact released more sulfur, which led to more global cooling than previously realized.
After an asteroid struck at the end of the Cretaceous period, debris from wildfires filled the atmosphere and blocked sunlight across Earth, causing ecosystem collapse and extinctions.
More than half of the species in five mammal groups went extinct in Africa about 34 million years ago, scientists recently discovered.
Scientists have discovered three new species of North American mammals, including one they've named after J.R.R. Tolkien's skin-changing warrior Beorn.
Scientists have uncovered an enormous fossil 'nursery' containing nearly 3,000 animal specimens from 518 million years ago, more than half of which are juveniles and babies.
Rediscovered footage of a thylacine taken in 1935 is the last-known recording of the marsupial, which went extinct in 1936.
Tens of thousands of years ago, a feces-contaminated wallow may have caused the deaths of nearly two dozen giant ground sloths.
The Chinese paddlefish, which could grow up to 23 feet long, may be the first official extinction of 2020.
Was the planet ever as hot as it is today, when every month the globe seems to be breaking one high-temperature record after another?
Three new plant species have disappeared from Earth every year since 1900, an alarming new analysis found.