Life on earth is on the verge of a mass extinction comparable to that which wiped out the dinosaurs, scientists at UC Berkeley have warned.
One in five vertebrate species could be set for extinction, says an international group of scientists.
You may not have noticed, but according to an Australian academic, we're currently in the middle of a mass extinction event comparable to that which killed off the dinosaurs.
Stephen Hawking believes humans must colonize additional planets or face mass extinction.
Climate change has been a significant factor in mass mammal extinction over most of the last fifty thousand years, according to an international team.
A major international study has found overwhelming evidence that a massive asteroid impact in did indeed wipe out the dinosaurs 65 million years ago.