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Search results for bone mineralization

Earth Sciences Mar 7, 2020

Researchers find evidence of a cosmic impact that caused destruction of one of the world's earliest human settlements

Before the Taqba Dam impounded the Euphrates River in northern Syria in the 1970s, an archaeological site named Abu Hureyra bore witness to the moment ancient nomadic people first settled down and started cultivating crops. ...

Earth Sciences Mar 5, 2020

What other planets can teach us about Earth

Sometimes, you need to leave home to understand it. For Stanford planetary geologist Mathieu Lapôtre, "home" encompasses the entire Earth.

Archaeology Feb 27, 2020

Rare lizard fossil preserved in amber

The tiny forefoot of a lizard of the genus Anolis was trapped in amber about 15 to 20 million years ago. Every detail of this rare fossil is visible under the microscope. But the seemingly very good condition is deceptive: ...

Ecology Feb 24, 2020

Spinal deformities in Sacramento-San Joaquin delta fish linked to toxic mineral selenium

Native fish discovered with spinal deformities in California's Sacramento-San Joaquin Delta in 2011 were exposed to high levels of selenium from their parents and food they ate as juveniles in the San Joaquin River, new research ...

Archaeology Feb 17, 2020

Reconstructing the diets of fossil vertebrates

Paleodietary studies of the fossil record are impeded by a lack of reliable and unequivocal tracers. Scientists from the MPI for Evolutionary Anthropology, the MPI for Chemistry and the Johannes Gutenberg University (JGU) ...

Archaeology Feb 17, 2020

How dinosaur blood vessels are preserved through the ages

A team of scientists led by Elizabeth Boatman at the University of Wisconsin Stout used infrared and X-ray imaging and spectromicroscopy performed at Berkeley Lab's Advanced Light Source (ALS) to demonstrate how soft tissue ...

Materials Science Feb 7, 2020

Scientists create 'chemical gardens' that can be used as bone substitute materials

A new way of making bone-replacement materials that allows for cells to grow around and inside them has been developed by researchers at the University of Birmingham.

Plants & Animals Jan 31, 2020

How do woodpeckers avoid brain injury?

Slamming a beak against the trunk of a tree would seem like an activity that would cause headaches, jaw aches and serious neck and brain injuries. Yet woodpeckers can do this 20 times per second and suffer no ill effects.

Bio & Medicine Jan 7, 2020

Tiny pharmaceuticals in the environment

Fear is a bad counselor. In the comic book series "Asterix," the Gaul chief Vitalstatistix may be afraid that the sky may fall on his head. In the real world, however, risks should be assessed with a clear mind. To ensure ...

Archaeology Dec 18, 2019

How breastfeeding sparked population growth in ancient cities

Historians down the ages have examined the ebb and flow of populations in ancient societies. But most of these examinations have tended to focus on male dominated events—the wars, the politics and the money. But there is ...

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