#Populations

Preliminary data shows the nation's headcount shrank 2.5%, the third straight decline in the nationwide survey conducted every five years.

When species are subjected to changing environments, they can survive in their current location through genetic adaptation. However, this ability is not unlimited.…

When scientists think about how plants will respond to climate change, they often look north. As temperatures rise, many species are expected to shift their ranges toward cooler regions with a loss of populations in warmer habitats.…

From Vice RSS Feed: Researchers Think They Figured Out Why Neanderthals Went Extinct, and It’s the Wildest Theory Yet

A new study suggests Neanderthals didn’t go extinct simply because of climate change or competition with Homo sapiens. Instead, the key difference may have been social connectivity—Homo sapiens formed stronger, more flexible networks that helped them…

There are plenty of fish in the sea, so the old saying goes. But that’s not as true as it used to be: Climate change, pollution and overfishing have slashed global fish populations. Now a new study suggests the problem may be worse than expected.

New genetic results reveal a previously unknown wave of people settled in South America 1,300 years ago and that Indigenous Americans carry remnants of a "ghost lineage."

A growing body of research is pointing to the critical, but unappreciated, role that older animals play in ensuring the survival of wildlife populations.…

Indigenous peoples of America represent the last principal expansion of humans across the globe1, yet their genetic history remains one of the least explored2.…