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Category: Anthropology

A chance event one million years ago changed human brains forever

A chance event one million years ago changed human brains forever

Science Alert reports: Like treasured recipes passed down from generation to generation, there are just some regions of DNA that evolution doesn’t dare tweak. Mammals far and wide share a variety of such encoded sequences, for example, which have remained untouched for millions of years. Humans are a strange exception to this club. For some reason, recipes long preserved by our ancient ancestors were suddenly ‘spiced up’ within a short evolutionary period of time. Because we’re the only species in…

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Modern humans needed three attempts – and 12,000 years – to colonise Europe

Modern humans needed three attempts – and 12,000 years – to colonise Europe

The Observer reports: It took three separate waves of modern humans to colonise Europe between 54,000 and 42,000 years ago. That is the key conclusion of scientists who have been studying caves in the Rhone valley where they have discovered evidence that Homo sapiens had to make a trio of determined attempts to head westwards and northwards from western Asia before they could establish themselves in the continent. “The first two of these waves failed but the third succeeded around…

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The puzzle of Neanderthal aesthetics

The puzzle of Neanderthal aesthetics

Rebecca Wragg Sykes writes: Sometime between 135,000-50,000 years ago, hands slick with animal blood carried more than 35 huge horned heads into a small, dark, winding cave. Tiny fires were lit amidst a boulder-jumbled floor, and the flame-illuminated chamber echoed to dull pounding, cracking and squelching sounds as the skulls of bison, wild cattle, red deer and rhinoceros were smashed open. This isn’t the gory beginning of an ice age horror novel, but the setting for a fascinating Neanderthal mystery….

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Ancient-human genome count surpasses 10,000

Ancient-human genome count surpasses 10,000

Nature reports: In 2010, researchers published the first genome sequence from an ancient human, using tufts of hair from a man who lived around 4,000 years ago in Greenland. In the 13 years since, scientists have generated genome data from more than 10,000 ancient people — and there’s no sign of a slowdown. “I feel truly gobsmacked that we have gotten to this point,” says David Reich, a population geneticist at Harvard Medical School in Boston, Massachusetts. His team maintains…

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Just like humans, other apes enjoy spinning

Just like humans, other apes enjoy spinning

The New York Times reports: In 2011, a gorilla named Zola gained internet fame when the Calgary Zoo posted a video that showed him spinning in circles on his knuckles and heels with what appeared to be a huge grin on his face. Zola, the so-called break-dancing gorilla, returned in 2017, this time in a video showing him whirling around a kiddie pool with a level of wild enthusiasm rivaling the most committed human dancer at an all-night rave. Humans’…

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Imagination makes us human – this unique ability to envision what doesn’t exist has a long evolutionary history

Imagination makes us human – this unique ability to envision what doesn’t exist has a long evolutionary history

Your brain can imagine things that haven’t happened or that don’t even exist. agsandrew/iStock via Getty Images Plus By Andrey Vyshedskiy, Boston University You can easily picture yourself riding a bicycle across the sky even though that’s not something that can actually happen. You can envision yourself doing something you’ve never done before – like water skiing – and maybe even imagine a better way to do it than anyone else. Imagination involves creating a mental image of something that…

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Unearthing the origins of agriculture

Unearthing the origins of agriculture

John Carey writes: Archaeobiology involves gathering and analyzing the remains of humans and plants to discern how people were living and what they were eating and doing. It started first with bioarchaeology, a term coined in the 1970s for the study of human bones and teeth, explains Clark Larsen, an anthropologist at The Ohio State University in Columbus. Researchers can use clues in bone structure and advanced technologies to determine whether our ancestors walked or ran a lot, measure isotopes…

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Fossil teeth reveal how brains developed in utero over millions of years of human evolution – new research

Fossil teeth reveal how brains developed in utero over millions of years of human evolution – new research

Any hominid fossil find with molar teeth can be plugged into a new equation that reveals its species’ prenatal growth rate. Gil Cohen-Magen/AFP via Getty Images By Tesla Monson, Western Washington University Fossilized bones help tell the story of what human beings and our predecessors were doing hundreds of thousands of years ago. But how can you learn about important parts of our ancestors’ life cycle – like pregnancy or gestation – that leave no obvious trace in the fossil…

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Genetics study lays bare Ice Age drama for humans in Europe

Genetics study lays bare Ice Age drama for humans in Europe

Reuters reports: Europe was no balmy paradise during the Ice Age, with the vast glaciers that blanketed large parts of the continent rendering wide swathes inhospitable for humans. But our species – a new immigrant to Europe – endured, though with great hardship. Researchers on Wednesday unveiled an analysis of genome data from 356 hunter-gatherers who lived in the region between 35,000 and 5,000 years ago, a span that included the Ice Age’s coldest interval between 25,000 and 19,000 years…

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Imagination makes us human – this unique ability to envision what doesn’t exist has a long evolutionary history

Imagination makes us human – this unique ability to envision what doesn’t exist has a long evolutionary history

Your brain can imagine things that haven’t happened or that don’t even exist. agsandrew/iStock via Getty Images Plus By Andrey Vyshedskiy, Boston University You can easily picture yourself riding a bicycle across the sky even though that’s not something that can actually happen. You can envision yourself doing something you’ve never done before – like water skiing – and maybe even imagine a better way to do it than anyone else. Imagination involves creating a mental image of something that…

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Fossils upend conventional wisdom about evolution of human bipedalism

Fossils upend conventional wisdom about evolution of human bipedalism

Jeremy DeSilva writes: Long before our ancestors evolved large brains and language, even before they tamed fire or made stone tools, they started doing something no mammal had done before: walking on two legs. Skeletal adaptations for traveling upright are evident in fossils of the very oldest hominins—members of the human family—which date to between seven million and five million years ago. Moving on two legs rather than four set the stage for subsequent evolutionary changes in our lineage. It…

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Hominids used stone tool kits to butcher animals earlier than once thought

Hominids used stone tool kits to butcher animals earlier than once thought

Science News reports: Nearly 3 million years ago, hominids employed stone tool kits to butcher hippos and pound plants along what’s now the shores of Kenya’s Lake Victoria, researchers say. Evidence of those food preparation activities pushes back hominids’ use of these tool kits, known as Oldowan implements, by roughly 300,000 years, say paleoanthropologist Thomas Plummer of Queen’s College, City University of New York and colleagues. That makes these finds possibly the oldest known stone tools. Several dating techniques place…

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We can still see these five traces of ancestor species in all human bodies today

We can still see these five traces of ancestor species in all human bodies today

Elia Pellegrini/Unsplash By Alice Clement, Flinders University Many of us are returning to work or school after spending time with relatives over the summer period. Sometimes we can be left wondering how on earth we are related to some of these people with whom we seemingly have nothing in common (especially with a particularly annoying relative). However, in evolutionary terms, we all share ancestors if we go far enough back in time. This means many features in our bodies stretch…

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Ancient humans and their early depictions of the universe

Ancient humans and their early depictions of the universe

Astronomy reports: In the Lascaux caves of southwestern France, which are famously adorned with 17,000-year-old paintings, the artist’s subject is almost always a large animal. But hovering above the image of one bull is an unexpected addition: a cluster of small black dots that some scholars interpret as stars. Perhaps it is the eye-catching Pleiades, which Paleolithic hunter-gatherers would have seen vividly in the unpolluted sky. Claims of prehistoric astronomy are controversial. Even if true, we frequently trace our cosmic…

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Human and Neanderthal brains have a surprising ‘youthful’ quality in common, new research finds

Human and Neanderthal brains have a surprising ‘youthful’ quality in common, new research finds

Neanderthal skull. Petr Student/Shutterstock By Stephen Wroe, University of New England; Gabriele Sansalone, Institute of Marine Sciences, and Pasquale Raia, University of Naples Federico II Many believe our particularly large brain is what makes us human – but is there more to it? The brain’s shape, as well as the shapes of its component parts (lobes) may also be important. Results of a study we published today in Nature Ecology & Evolution show that the way the different parts of…

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Neanderthals were smart, sophisticated, creative — and misunderstood

Neanderthals were smart, sophisticated, creative — and misunderstood

Newsweek reports: Nearly 40,000 years after disappearing from the planet, Neanderthals are having a moment. In recent years, tantalizing new evidence suggests that our primitive, heavy-browed cousins were chefs, jewelry-makers and painters. And what we are learning from the genetic clues they left behind—and the promise of what those clues will tell us about ourselves in the years ahead—won Swedish paleo-geneticist Svante Pääbo the 2022 Nobel Prize in medicine and physiology this fall. The most recent discoveries, un-earthed in a…

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