Around 66 million years ago, a six-mile-wide asteroid hit Earth, triggering the extinction of three-quarters of all living ...

Surprising new fossil evidence undermines the idea that there was ever a mass extinction on land – and may force us to ...

Nor are they proxies of the dire wolf,” the members of the International Union for Conservation of Nature ... little to say on the subject. These questions are difficult because they are ...

The world is in the throes of a biodiversity crisis and, according to some researchers, undergoing its sixth mass extinction ... Proponents of high-tech in conservation cite the ability of ...

Mass Audubon, at 129 years old, is leading the push for an increase in state conservation investments. Its president and CEO, David O'Neill, has spent years in the conservation sector at organizations ...