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.

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 ...

Trump officials have proposed changing a decades-old interpretation of a key word in the Endangered Species Act, which would make it much easier to log, build or drill for oil.

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 ...

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.

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.

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 Endangered Species Act worked. Thanks to the legislation and the way it has been enforced, today we have the opportunity to watch soaring bald eagles in the lower 48, see gray whales migrate ...

The Trump administration is proposing to significantly limit the Endangered Species Act's power to preserve crucial habitats by changing the definition of one word: harm. On Wednesday, the ...

Indeed, the American Southwest is particularly vulnerable to invasive species, including highly adaptive species that can affect human health, largely thanks to the rapid spread of urbanism ...

In South America, which is home to the Amazon Rainforest, 3,356 out of the 13,668 assessed tree species are at risk of extinction due to deforestation for crop farming and livestock ranching.

Divers, underwater submersibles and remotely operated vehicles found 886 marine species over a 16-month period, and they have all been deemed new to science.