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January 7, 2014
Like salmon in reverse, long-snouted Bandringa sharks migrated downstream from freshwater swamps to a tropical coastline to spawn 310 million years ago, leaving behind fossil evidence of one of the earliest known shark nurseries.
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May 4, 2022
In studying and reviving long-ago scents, archaeologists aim to understand how people experienced, and interpreted, their worlds through smell.
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December 3, 2025
An ancient, shared set of human-specific genes underwent changes in a geographically isolated population after around 300,000 years ago, scientists say.
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August 18, 2022
Although Betelgeuse is currently a red giant star, astronomers millennia ago reported it as yellow
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July 10, 2025
Molecules from the 20-million-year-old teeth of a rhino relative are among the oldest ever sequenced, opening tantalizing possibilities to scientists
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May 16, 2012
Today's mega forest fires of the southwestern US are truly unusual and exceptional in the long-term record, suggests an unprecedented study that examined 1,500 years of ancient tree ring and fire data from two distinct climate periods. Researchers constructed and analyzed a statistical model and found that today's dry, hot climate combined with the past century of human fire suppression is causing megafires, said study co-author and fire anthropologist Christopher Roos, Southern Methodist…
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February 23, 2024
Traits that help trees live for hundreds of years also foster forest life, one reason why old growth forest conservation is crucial.
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July 19, 2023
Researchers have decoded more than half of the characters in the so-called Kushan script by comparing them with inscriptions in a known ancient language called Bactrian
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February 16, 2024
A retrovirus embedded in the DNA of some vertebrates helps turn on production of a protein needed to insulate nerve cells, aiding speedy thoughts.
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August 29, 2024
From glacial ice cores extracted from the Tibetan Plateau, scientists recovered the equivalent of 1,705 viral species. Reading their genomes tells the story of 41,000 years of climate change
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