While we can’t say exactly how many animal species have gone extinct in the past 125 years, it’s estimated that between 200 and 500 species have faced extinction in the past century.

Far fewer ocean species have gone extinct over the past 500 years than those on land — just 15 marine animals have gone extinct, compared to 514 terrestrial animal species, a 2015 study from the ...

Over the billions of years that this planet has been in existence many species have come and gone. Some animals have suffered ...

Biologists have confirmed the existence of a 200-million-year-old species of egg-laying mammal that has been assumed to be ...

These species have been declared extinct or possibly ... was declared extinct in 2010, although it might have gone extinct years earlier. Scientists were hesitant to write the small bird off ...

Anna Skinner is a Newsweek senior reporter based in Indianapolis. Her focus is reporting on the climate, environment and weather but she also reports on other topics for the National News Team.

There are now 650 species that have gone extinct in the U.S., according to the Center for Biological Diversity, which says factors such as climate change, pollution and invasive species contribute ...

While extinctions occur naturally — more than 99% of all species to ever exist have already gone extinct — human activity can dramatically speed up the rate of species extinction — an idea ...

It turns out, though, that Horton should have been worried about himself, too: According to new research on island-dwelling species ... to be threatened or to go extinct,” Roberto Rozzi ...

Let's start with the confirmed extinctions. A total of 777 animals have gone extinct since the beginning of the modern era in 1500, according to the International Union for Conservation of Nature ...

“There’s a sense of sadness there. … There are species that have gone and will go extinct because of this. “ Climate change also has diminished another winter freeze benefit, Lorimer ...

“Most species don’t have just one threat putting them at risk ... There’s nowhere else for these animals to go.” The Associated Press Health and Science Department receives support from ...