Tag Archives: teeth

‘Deceptively cute’ ancient whale with razor-sharp teeth and eyes the size of tennis balls discovered in Australia | Environment

‘Deceptively cute’ ancient whale with razor-sharp teeth and eyes the size of tennis balls discovered in Australia | Environment

“Small and deceptively cute, but definitely not harmless” is how scientists have described a new species of ancient whale, from a 25-million-year-old fossil found on Victoria’s surf coast. This early species, called Janjucetus dullardi, was an extremely unusual animal, said Dr Erich Fitzgerald, senior curator of vertebrate palaeontology at Museums Victoria Research Institute. It was tiny – about the size …

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New species of vegetarian piranha found has human-like teeth

New species of vegetarian piranha found has human-like teeth

Myloplus sauron, a newly described Amazonian fish, looks like trouble at first glance. Its round silver body wears a stark black stripe that tapers toward the belly, a pattern that recalls the fiery “Eye of Sauron” from The Lord of the Rings. Yet appearances mislead. The fish is a peace loving herbivore equipped with human style molars instead of razor …

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Dinosaur teeth reveal Jurassic CO2 levels and climate conditions

Dinosaur teeth reveal Jurassic CO2 levels and climate conditions

Dinosaur teeth are best known for their bite, yet new research says they also stored a chemical snapshot of prehistoric air. By probing that record, scientists have rebuilt carbon dioxide levels and plant productivity for the age of dinosaurs with a detail once thought impossible. The study comes from Dr. Dingsu Feng and colleagues at the University of Göttingen, the …

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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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