Nearly 445 million years ago, during the Late Ordovician period, Earth faced its first known mass extinction,an event so ...

The Earth has gone through many major events over the course of hundreds of millions of years. Some of the most significant ...

Scientists found an “unusually well-preserved” deposit of over 150 species from 462 million years ago. Interestingly enough, many of them have miniature bodies.

At a more extreme scenario of 4.3 degrees of warming, nearly 15% of species would be imperiled. And at 5.4 degrees of warming, 29.7% of species could die out.

Nature is in crisis, and it's only getting worse. As species vanish at a rate not seen in 10 million years, more than 1 million species are currently on the brink.

Scientists recently discovered two fossilized specimens of these ancient and peculiar organisms, describing one of them as a new species. The fossils, which were excavated from a Welsh quarry on ...

The Fish and Wildlife Service said 21 species, including a mammal, birds, fish and mussels, are being removed from the endangered list because they're now considered extinct.

An update to the International Union for Conservation of Nature's Red List of Threatened Species has declared 31 animal and plant species extinct. That total includes the lost shark, listed as ...

The U.S. Fish and Wildlife Service has delisted 21 species from the Endangered Species Act due to extinction, the agency announced Monday. The service had proposed the delisting of nearly two ...

The species, including birds, mussels and a bat, have been moved off the threatened and endangered list. They join 650 other species that have gone extinct in the U.S.

Dr. Dufresnes’s method for finding new species takes a lot of work in the field. Other researchers have looked for more efficient ways to identify species. One popular method is to sequence DNA ...