Search results for ancestral populations

Evolution Apr 18, 2024

Instinct for 'fight or flight' may be much older than we thought

Evidence in lampreys for the presence of a rudimentary sympathetic nervous system, previously thought to be unique to jawed vertebrates, has been presented in Nature. The finding may prompt a rethink of the origins of the ...

Earth Sciences Apr 12, 2024

Q&A: El Niño drought leaves Zimbabwe's Lake Kariba only 13% full—a disaster for people and wildlife

Water levels at Lake Kariba in Zimbabwe have dropped dramatically because of the latest El Niño drought. The country's president, Emmerson Mnangagwa, has declared a national disaster.

Archaeology Apr 9, 2024

Irish castles and ancient Greek rites show culture's role in regional regeneration

Tapping into the long and rich histories of places around Europe is a central part of an EU push for rural and urban revival.

Plants & Animals Apr 8, 2024

The regenerative feats of endangered axolotls

Axolotls (Ambystoma mexicanum) are a critically endangered species of salamander. The species has only one natural habitat remaining, a series of canals in Mexico City, and only 50 to 1,000 axolotls are estimated to be left ...

Economics & Business Apr 5, 2024

Do immigrants and immigration help the economy?

When Americans mark their presidential election ballots later this year, immigration will be top of mind—it's the nation's number one issue, according to pollster Gallup. And one of the toughest talkers on the topic is ...

Ecology Apr 1, 2024

Beavers' work can help stop wildfires: More places in California are embracing them

A vast burn scar unfolds in drone footage of a landscape seared by massive wildfires north of Lake Tahoe. But amid the expanses of torched trees and gray soil, an unburnt island of lush green emerges.

Other Mar 31, 2024

Q&A: Can genetic genealogy restore family narratives disrupted by the transatlantic slave trade?

Some political figures seek to remove references to slavery from the study of American history, adding to the vast knowledge gaps that stem from the transatlantic slave trade. To better understand these histories, scholars ...

Archaeology Mar 29, 2024

Q&A: Archaeologist's fieldwork finds movement of crops, animals played a key role in domestication

Archaeologist Xinyi Liu at Washington University in St. Louis teamed up with Martin Jones of the University of Cambridge to write a new paper for the Proceedings of the National Academy of Sciences that explains how recent ...

Ecology Mar 27, 2024

The Klamath River's dams are being removed: Inside the effort to restore a scarred watershed

Near the California-Oregon border, reservoirs that once submerged valleys have been drained, revealing a stark landscape that had been underwater for generations.

Archaeology Mar 25, 2024

Persian plateau unveiled as crucial hub for early human migration out of Africa

A new study combining genetic, paleoecological, and archaeological evidence has unveiled the Persian Plateau as a pivotal geographic location serving as a hub for Homo sapiens during the early stages of their migration out ...

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