There have been five great die-offs in the history of our planet, when at least 75 percent of the known species disappear. The last mass extinction was 66 million years ago, when an asteroid wiped ...

This shift, called ecological marginalization, leads to a higher species extinction risk. According to the researchers, the quality of the habitat matters to a species' extinction risk and ...

Now we're witnessing what a lot of people are calling the sixth mass extinction where the same thing could happen on our watch. Liz Hadly: it's a horrific state of the planet when common species ...

Nearly two thirds of the sharks and rays that live among the world's corals are threatened with extinction, according to new ...

It would already take 3 million years to recover the diversity of mammal species driven to extinction since humans settled on the island 2,500 years ago. But much more is at risk in the coming ...

At least three quarters of the known species are disappearing from Earth, Barnosky said. Mass Extinctions Happen Every 27 Million Years This mass extinction starts with species loss, includes ...

Five days after the U.S. Energy Department announced a $700 million conditional loan to an Australian mining company pursuing ...

biodiversity science is at the forefront of global conservation action and is key in unifying nations and equipping them with the tools and information necessary to reverse species extinction ...

Scientists and bird enthusiasts are witnessing the fruits of their conservation labor, as populations of some bird species continue to grow despite previously being on the brink of extinction.

The U.S. Department of Energy announced a conditional loan of $700 million Friday to an Australian mining company to pursue a ...

disk abalone and giant abalone -- are designated as "endangered," the second highest of the three categories for those facing the risk of extinction on the IUCN's Red List of Threatened Species ...