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Phys.org / Earliest Americans specialized in megafauna hunting from Alaska to South America, analysis of 50 sites reveals
New research led by a University of Alaska Fairbanks archaeologist reveals that the earliest Native Americans had highly specialized diets, primarily hunting the largest animals on the landscape, and they targeted these megafauna ...
Phys.org / Plant DNA harbors virus 'fossils' that reflect 300 million years of evolution
Is it possible to study the history of viruses that emerged several hundred million years ago? An international team of INRAE and CIRAD researchers answered this question by exploring plant genomes to find the molecular fossils ...
Phys.org / Were Clovis foragers in Late Pleistocene North America big-game hunters, or just big-game scavengers?
There are currently 15 well-documented Late Pleistocene localities in North America in which Clovis points are found associated with proboscidean remains (of mammoth, mastodon and gomphothere). Archaeologists routinely assume ...
Phys.org / Astronomers find an enigmatic source that is most likely a Little Red Dot in formation
Astronomers have, for the first time, found a source in the process of becoming a Little Red Dot, using the James Webb Space Telescope (JWST). Little Red Dots are likely early galaxies and some of the most intriguing objects ...
Phys.org / World's first synthetic cell with a complete life cycle could revolutionize biological engineering
While many of life's mysteries remain unsolved, every biologist can describe the basic processes performed by a living organism, including energy use, reproduction, growth and development. While these characteristics can ...
Medical Xpress / Long sitting bouts linked to increased cancer risk
Each additional hour of prolonged, uninterrupted sedentary behavior in a person's day is associated with a 9% higher risk of cancer death, according to a study published in PLOS Medicine by Frederick Ho of the University ...
Tech Xplore / Spintronic hardware unlocks faster, lower-energy optimization, outpacing tested quantum annealers
Solving complex optimization problems is central to many modern technologies, from logistics and financial modeling to chip design, communications and artificial intelligence (AI). However, as these problems grow in size, ...
Phys.org / Super-deep diamond discovery may rewrite Earth's role in preserving the building blocks of life
Two diamonds formed 700 kilometers below the Earth's surface reveal a life-giving synchronicity between shifting continents and the cycling of phosphorus, a vital building block of DNA and cell membranes.
Phys.org / Coral loss may erase up to $3 billion in Hawaiʻi reef recreation by 2100
Coral reef decline driven by climate change could cost Hawaiʻi residents between $1.8 billion and $3 billion in lost reef-related activities by 2100, according to a new study published in Ecological Economics. The research ...
Phys.org / Quiet outings linked to more frequent dangerous wildlife encounters
The more people expand into previously natural areas, the more wildlife and humans step on each other's toes, leading to more interactions that may result in conflict. This includes national parks, where people flock to recuperate ...
Phys.org / Fish in a polluted Mexican river may mate with the wrong species, leading to hybrid offspring
The byproducts of modern society appear to be messing with the love life of two tiny fish species that have long coexisted in Mexican rivers.
Phys.org / Graphene can hold multiple states of superconductivity, a new study finds
The ordinary graphite in pencil lead is proving to be surprisingly multifaceted at the microscale. In a study published in the journal Nature, MIT researchers report that a certain microscopic structure found in natural graphite ...
