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Neanderthal Gene Still Shapes Muscle and Jaws in Some Living Humans

Velazquez-Arcelay et al. found that genetic material from Neanderthal ancestors may have contributed to the propensity of some people today to be early risers, the sort of people who are more comfortable getting up and going to bed earlier. Image credit: Holger Neumann / Neanderthal Museum.

Neanderthals vanished roughly 42,000 years ago, but a piece of their biology appears to be quietly at work in some people today, according to a new study led by scientists from the Max Planck Institute for Evolutionary Anthropology.

The post Neanderthal Gene Still Shapes Muscle and Jaws in Some Living Humans appeared first on Sci.News: Breaking Science News.

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Study Points to Sugar, Not Just Meat, as Fuel for Human Brain Evolution

Paranthropus boisei. Image credit: Β© Roman Yevseyev.

A team of researchers from the University of Sydney and the University of Glasgow argues that dietary sugars, not animal foods, may have played the decisive role in the expansion of the human brain over the past 4 million years, as hominin brain size grew nearly fivefold, from about 300 grams in early relatives like […]

The post Study Points to Sugar, Not Just Meat, as Fuel for Human Brain Evolution appeared first on Sci.News: Breaking Science News.

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Scientists Find Traces of Two Unknown Archaic Hominins in Human DNA

An archaic hominin. Image credit: Ninara / CC BY 2.0.

New research led by the University of California, Berkeley reveals that beyond Neanderthals and Denisovans, humans interbred with two mysterious β€˜ghost’ lineages: one in Africa more than 50,000 years ago, another in Eurasia over 1.7 million years ago.

The post Scientists Find Traces of Two Unknown Archaic Hominins in Human DNA appeared first on Sci.News: Breaking Science News.

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224,000-Year-Old Homo Skull Fragment Adds New Mystery to Human Origins

A Homo heidelbergensis, a Neanderthal and a Cro-Magnon. Image credit: SINC / JosΓ© Antonio PeΓ±as.

A fossilized skull fragment of Homo sp. unearthed in central Spain offers paleoanthropologists a fresh window into the story of ancient humans who lived in Europe hundreds of thousands of years ago.

The post 224,000-Year-Old Homo Skull Fragment Adds New Mystery to Human Origins appeared first on Sci.News: Breaking Science News.

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Ancient Footprints in Kenya Hint at Bigger Bodies and Group Behavior among Early Human Relatives

One of 1.43-million-year-old footprints found at the GaJi10 site in the Koobi Fora Formation in northern Kenya; a 15-cm (6-inch) ruler is shown for scale. Image credit: Kay Behrensmeyer.

A set of 1.43-million-year-old fossil footprints preserved along the margin of an ancient lake in northern Kenya is offering paleoanthropologists new evidence about the size, gait and social lives of the beings who made them and reopening questions about which species they belonged to.

The post Ancient Footprints in Kenya Hint at Bigger Bodies and Group Behavior among Early Human Relatives appeared first on Sci.News: Breaking Science News.

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Stone Tools from Armenian Cave Reveal Split Strategy for Survival 50,000 Years Ago

A look at Ararat-1 Cave from the bottom of the Ararat Depression. Image credit: Ariel Malinsky Buller.

Ararat-1, a modest limestone cave that lies at an elevation of 1,034 m on the eastern flanks of the Ararat Depression in central Armenia, has yielded a striking puzzle about how Middle Paleolithic humans moved across their landscape.

The post Stone Tools from Armenian Cave Reveal Split Strategy for Survival 50,000 Years Ago appeared first on Sci.News: Breaking Science News.

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Hugs May Be an Ancient Peacekeeping Tool, Ape Study Suggests

Examples of bonobo and chimpanzee reassurance behaviors. Image credit: Z. Clay / J.S. Brooker.

In a new study of chimpanzees (Pan troglodytes) and bonobos (Pan paniscus), scientists found that embraces, touches and other reassuring gestures before competition for food were linked to more peaceful sharing, suggesting the roots of human social touch stretch back at least six million years.

The post Hugs May Be an Ancient Peacekeeping Tool, Ape Study Suggests appeared first on Sci.News: Breaking Science News.

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Ancient Turkish Cave Reveals Neanderthals and Homo sapiens Shared Same Way of Life

A group of Neanderthals in a cave. Image credit: Tyler B. Tretsven.

ÜçağızlΔ± II Cave on TΓΌrkiye’s Mediterranean coast has yielded a rare and detailed record of two Homo species living the same way of life, one after the other, over more than 20,000 years, offering new evidence that the transition from Neanderthals to modern humans in the region was far more culturally seamless than previously understood.

The post Ancient Turkish Cave Reveals Neanderthals and Homo sapiens Shared Same Way of Life appeared first on Sci.News: Breaking Science News.

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Evidence of Fire Use by Early Humans May Date Back Nearly 1.8 Million Years

Shaar et al. unveil the oldest evidence of human activity in Wonderwerk Cave, South Africa. Image credit: Michael Chazan.

Scientists have uncovered compelling new evidence that early human ancestors, likely Homo erectus, were deliberately bringing fire into Wonderwerk Cave in South Africa as far back as 1.79 million years ago.

The post Evidence of Fire Use by Early Humans May Date Back Nearly 1.8 Million Years appeared first on Sci.News: Breaking Science News.

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Acheulean Toolmakers Chose Their Stone with Surprising Precision

A reconstruction of Homo longi in his habitat. Image credit: Chuang Zhao.

Geochemical analysis of 780,000-year-old stone tools from Israel suggests Acheulean (or Acheulian) hominins repeatedly sought specific basalt sources, revealing sophisticated planning and deep knowledge of their landscape.

The post Acheulean Toolmakers Chose Their Stone with Surprising Precision appeared first on Sci.News: Breaking Science News.

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Upright Walking and Larger Brains May Explain Why 90% of Humans Favor Their Right Hand

Reconstruction of Homo erectus.

New research from the University of Oxford and the University of Reading suggests bipedalism and expanding brain size helped drive the overwhelming dominance of right-handedness in humans.

The post Upright Walking and Larger Brains May Explain Why 90% of Humans Favor Their Right Hand appeared first on Sci.News: Breaking Science News.

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