Tag Archives: teeth

Prehistoric Air Has Been Reconstructed From Dinosaur Teeth in an Amazing First : ScienceAlert

Prehistoric Air Has Been Reconstructed From Dinosaur Teeth in an Amazing First : ScienceAlert

A collection of dinosaur teeth hailing back to the Cretaceous and Jurassic periods has given scientists a new window into the world’s prehistoric climate. By studying an isotope of oxygen in the fossils to infer atmospheric carbon dioxide levels, a team led by geochemist Dingsu Feng of the Georg August University of Göttingen in Germany has reconstructed the very air …

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4,000-year-old teeth reveal the earliest use of this psychoactive substance

4,000-year-old teeth reveal the earliest use of this psychoactive substance

For the first time, archaeologists have used advanced scientific techniques on 4,000-year-old dental plaque to confirm traces of betel nut chewing in ancient Thai communities. Betel nuts are usually chewed as “quids,” a mix of slaked lime and ground betel nuts—which contain psychoactive compounds that boost energy, alertness, euphoria, and relaxation—wrapped in a betel leaf. The stimulant, which can leave …

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4,000-year-old teeth reveal the earliest use of this psychoactive substance

4,000-year-old teeth reveal the earliest use of this psychoactive substance

Facebook Tweet Email Link For the first time, archaeologists have used advanced scientific techniques on 4,000-year-old dental plaque to confirm traces of betel nut chewing in ancient Thai communities. Betel nuts are usually chewed as “quids,” a mix of slaked lime and ground betel nuts—which contain psychoactive compounds that boost energy, alertness, euphoria, and relaxation—wrapped in a betel leaf. The …

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Fossil Teeth in China Reveal a Surprising Blend of Ancient Human Traits

Fossil Teeth in China Reveal a Surprising Blend of Ancient Human Traits

In a groundbreaking study published in the Journal of Human Evolution, researchers have uncovered fascinating details about human evolution in ancient Asia through fossilized teeth discovered at the Hualongdong site in Anhui Province, China. The findings, led by Professor Wu Xiujie, director of the Hualongdong excavations, challenge established theories of Homo evolution, particularly in Asia during the Middle Pleistocene era. …

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Scientists Discover Remarkable 18-Million-Year-Old Secrets Preserved in Fossil Teeth

Scientists Discover Remarkable 18-Million-Year-Old Secrets Preserved in Fossil Teeth

In a groundbreaking discovery, researchers from Harvard University and the Smithsonian Museum Conservation Institute have uncovered ancient proteins hidden in fossilized teeth, offering a deeper glimpse into the lives and evolutionary history of extinct animals. Published in the renowned journal Nature, their study reveals how proteins, long considered too fragile to survive millions of years, are preserved within the enamel …

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