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The enigma of Bronze Age tin

Illustration of Bronze Age jewelry and vessels (stock image). Credit: © Juulijs / Adobe Stock The origin of the tin used in the Bronze Age has long been one of the greatest enigmas in archaeological research. Now researchers from Heidelberg University and the Curt Engelhorn Centre for Archaeometry in Mannheim have solved part of the…

The enigma of Bronze Age tin

Illustration of Bronze Age jewelry and vessels (stock image). Credit: © Juulijs / Adobe Stock The origin of the tin used in the Bronze Age has long been one of the greatest enigmas in archaeological research. Now researchers from Heidelberg University and the Curt Engelhorn Centre for Archaeometry in Mannheim have solved part of the…

Controversial insecticides shown to threaten survival of wild birds

Sparrows in a field (stock image). Credit: © Ingo Bartussek / Adobe Stock New research at the University of Saskatchewan (USask) shows how the world's most widely used insecticides could be partly responsible for a dramatic decline in songbird populations. A study published in the journal Science on Sept. 13 is the first experiment to…

Why is Earth so biologically diverse? Mountains hold the answer

Mount Chimborazo volcano, Ecuador (stock image). Credit: © alanfalcony / Adobe Stock What determines global patterns of biodiversity has been a puzzle for scientists since the days of von Humboldt, Darwin, and Wallace. Yet, despite two centuries of research, this question remains unanswered. The global pattern of mountain biodiversity, and the extraordinarily high richness in…

The enigma of Bronze Age tin

Illustration of Bronze Age jewelry and vessels (stock image). Credit: © Juulijs / Adobe Stock The origin of the tin used in the Bronze Age has long been one of the greatest enigmas in archaeological research. Now researchers from Heidelberg University and the Curt Engelhorn Centre for Archaeometry in Mannheim have solved part of the…

Extinction of Icelandic walrus coincides with Norse settlement

Modern-day walrus (stock image). Credit: © Chris / Adobe Stock An international collaboration of scientists in Iceland, Denmark and the Netherlands has for the first time used ancient DNA analyses and C14-dating to demonstrate the past existence of a unique population of Icelandic walrus that went extinct shortly after Norse settlement some 1100 years ago.…

New flying reptile species was one of largest ever flying animals

Illustration of pterosaurs in flight (stock image). Credit: © dottedyeti / Adobe Stock A newly identified species of pterosaur is among the largest ever flying animals, according to a new study from Queen Mary University of London. Cryodrakon boreas, from the Azhdarchid group of pterosaurs (often incorrectly called 'pterodactyls'), was a flying reptile with a…

New UN high-seas treaty must close gaps in biodiversity governance

Fish market (stock image). Credit: © Andrey Bandurenko / Adobe Stock Thousands of marine species could be at risk if a new United Nations high-seas biodiversity treaty, now being negotiated in New York, does not include measures to address the management of all fish species in international waters, not just the commercial species, warns an…

First human ancestors breastfed for longer than contemporary relatives

Calcium element in periodic table (stock image). Credit: © Francesco Scatena / Adobe Stock By analysing the fossilised teeth of some of our most ancient ancestors, a team of scientists led by the universities of Bristol (UK) and Lyon (France) have discovered that the first humans significantly breastfed their infants for longer periods than their…

First human ancestors breastfed for longer than contemporary relatives

Calcium element in periodic table (stock image). Credit: © Francesco Scatena / Adobe Stock By analysing the fossilised teeth of some of our most ancient ancestors, a team of scientists led by the universities of Bristol (UK) and Lyon (France) have discovered that the first humans significantly breastfed their infants for longer periods than their…

T. Rex had an air conditioner in its head, study suggests

T. rex skeleton, head and neck (stock image). Credit: © stockdevil / Adobe Stock Tyrannosaurus rex, one of the largest meat-eating dinosaurs on the planet, had an air conditioner in its head, suggest scientists from the University of Missouri, Ohio University and University of Florida, while challenging over a century of previous beliefs. In the…

Ancient animal species: Fossils dating back 550 million years among first...

Three Gorges, Yantze River, China (stock image). Credit: © Mark / Adobe Stock In a remarkable evolutionary discovery, a team of scientists co-led by a Virginia Tech geoscientist has discovered what could be among the first trails made by animals on the surface of the Earth roughly a half-billion years ago. Shuhai Xiao, a professor…

This protein is how creatures sense cold

Fox in snow (stock image). Credit: © rtaylorimages / Adobe Stock Researchers have identified a receptor protein that can detect when winter is coming. The findings, scheduled for publication Aug. 29 in the journal Cell, reveal the first known cold-sensing protein to respond to extreme cold. "Clearly, nerves in the skin can sense cold. But…

How humans have shaped dogs’ brains

Puppies of various dog breeds (stock image). Credit: © Rawpixel.com / Adobe Stock Dog brain structure varies across breeds and is correlated with specific behaviors, according to new research published in JNeurosci. These findings show how, by selectively breeding for certain behaviors, humans have shaped the brains of their best friends. Over several hundred years,…

New artifacts suggest people arrived in North America earlier than previously...

Salmon River, Idaho (stock image). Credit: © davidmarx / Adobe Stock Stone tools and other artifacts unearthed from an archeological dig at the Cooper's Ferry site in western Idaho suggest that people lived in the area 16,000 years ago, more than a thousand years earlier than scientists previously thought. The artifacts would be considered among…

A new timeline of Earth’s cataclysmic past

Asteroid impact illustration (stock image). Credit: © Andrea Danti / Adobe Stock Welcome to the early solar system. Just after the planets formed more than 4.5 billion years ago, our cosmic neighborhood was a chaotic place. Waves of comets, asteroids and even proto-planets streamed toward the inner solar system, with some crashing into Earth on…

Jurassic world of volcanoes found in central Australia

Volcanic eruption (stock image). Credit: © Fredy Thürig / Adobe Stock An international team of subsurface explorers from the University of Adelaide in Australia and the University of Aberdeen in Scotland have uncovered a previously undescribed 'Jurassic World' of around 100 ancient volcanoes buried deep within the Cooper-Eromanga Basins of central Australia. The Cooper-Eromanga Basins…

A new timeline of Earth’s cataclysmic past

Asteroid impact illustration (stock image). Credit: © Andrea Danti / Adobe Stock Welcome to the early solar system. Just after the planets formed more than 4.5 billion years ago, our cosmic neighborhood was a chaotic place. Waves of comets, asteroids and even proto-planets streamed toward the inner solar system, with some crashing into Earth on…

Jurassic world of volcanoes found in central Australia

Volcanic eruption (stock image). Credit: © Fredy Thürig / Adobe Stock An international team of subsurface explorers from the University of Adelaide in Australia and the University of Aberdeen in Scotland have uncovered a previously undescribed 'Jurassic World' of around 100 ancient volcanoes buried deep within the Cooper-Eromanga Basins of central Australia. The Cooper-Eromanga Basins…

First cells may have emerged because building blocks of proteins stabilized...

Cells abstract illustration (stock image). Credit: © rost9 / Adobe Stock Life on Earth arose about 4 billion years ago when the first cells formed within a primordial soup of complex, carbon-rich chemical compounds. These cells faced a chemical conundrum. They needed particular ions from the soup in order to perform basic functions. But those…

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