Human Evolution

Researchers found chewing gum can increase metabolic rates by up to 15 percent.   

Chewing Uses More Energy Than You'd Think

And it may have influenced the way our jaws and teeth evolved

By studying the throats of 43 primate species, researchers found they all had vocal membranes that destabilized their voices. Humans, on the other hand, do not.

The Evolutionary Trait That May Have Led to Human Speech

“Vocal membranes” in primates make their speech grating and unpredictable, study suggests. Humans have no such thing

Based on the remnants left on pottery fragments, researchers can say northern Europeans have been drinking milk for 9,000 years.

Why Did Europeans Evolve Into Becoming Lactose Tolerant?

Famine and disease from millennia ago likely spurred the rapid evolution of the trait on the continent

Roughly two million years old, this tool, known as the Kanjera stone, was part of a new Stone Age technology that helped make better-fed, smarter hominins.  

This Is the Oldest Human-Made Object in the Smithsonian Collections

Roughly two million years ago, simple items like the Kanjera tool sparked a revolution in the way humans lived

Researchers analyzed flint tools found at the Evron Quarry in Israel.

When Did Early Humans Start Using Fire? To Find Answers, Scientists Enlist Artificial Intelligence

By analyzing flint tools, researchers find new evidence of an 800,000-year-old fire in northern Israel

The tooth from Laos thought to belong to a Denisovan girl

Ancient Molar Found in Laos Could Help Fill in a Gap in Human History

Researchers believe the tooth belongs to a Denisovan girl, making it the first fossil evidence of these hominins in Southeast Asia

A gorilla sleeps in a forest in Rwanda.

Why Humans Sleep Less Than Their Primate Relatives

Ancient humans may have evolved to slumber efficiently—and in a crowd

Homo heidelbergensis, a species whose skull is pictured here, likely lived in regions that overlapped with Neanderthals in Europe and Homo sapiens in Africa—according to climate modeling results released this week.

How Did Climate Change Affect Ancient Humans?

Sophisticated climate models were paired with evidence from the archaeological record to reveal where ancient humans may have lived and evolved

Filling in genome gaps could help scientists better the genetic basis for certain diseases and lead to new medical discoveries.

Scientists Have Finally Sequenced a 'Gapless' Human Genome

Scientists have deciphered the missing eight percent of our genetic blueprint, setting the stage for new discoveries in human evolution and disease

Using human genomes, researchers have developed a massive family tree identifying nearly 27 million ancestors dating back more than 100,000 years ago. 

Largest Human Family Tree Identifies Nearly 27 Million Ancestors

Researchers create massive genealogical network dating back 100,000 years

Scientists tested 16 hearth locations inside Lazaret Cave near Nice, France, to determine how early humans used fire.

Why Early Humans Built Fires in the Center of Lazaret Cave

A new study suggests pre-Neanderthals carefully placed their hearths to minimize smoke exposure while maximizing room for activities

Neronian points found in Grotte Mandrin

Discovery of Ancient Baby Tooth Places Humans in Western Europe 10,000 Years Earlier Than Previously Thought

The archeologists also uncovered a number of Neanderthal artifacts suggesting the two species coexisted in the area

Scientists identified an odor receptor that detects a synthetic musk used in fragrances, and another that detects underarm odor.

Humans' Sense of Smell May Be Worse Than Our Primate Ancestors'

The recent study also identified two new scent receptors for musk and body odor

The remote Kibish Formation, in southern Ethiopia, features layered deposits more than 300 feet thick that have preserved many ancient human tools and remains. 

East Africa's Oldest Modern Human Fossil Is Way Older Than Previously Thought

Analysis of ash from a massive volcanic eruption places the famed Omo I fossil 36,000 years back in time

Richard Leakey's most notable find came in 1984 when he uncovered a near-complete Homo erectus skeleton dated about 1.5 million years ago. The skeleton dubbed Turkana Boy is 40 percent complete and is the most near-complete fossil skeleton of a human ancestor ever found.

Famed Paleoanthropologist and Wildlife Conservationist Richard Leakey Dies at 77

His team's discovery of early human skulls and skeletons cemented Africa as the cradle of humanity

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Seven New Things We Learned About Human Evolution in 2021

Paleoanthropologists Briana Pobiner and Ryan McRae reveal some of the year's best findings in human origins studies

From amazing firsts on Mars to the impacts of climate change on Earth, these science stories stood out as the most important of 2021

The Ten Most Significant Science Stories of 2021

Thrilling discoveries, hurdles in the fight against Covid and advancements in space exploration defined the past year

Archaeologists unearthed the body of a female infant at a 10,000-year-old burial site in the Arma Veirana cave in Italy.

Baby Buried With Care 10,000 Years Ago Found in Italian Cave

The rare interment suggests that some hunter-gatherer societies imbued female infants with full personhood

The footprints from site A (left) look similar to those excavated from site G (right), but they are much wider. 

A Set of Ancient Footprints May Have Belonged to an Unknown Human Ancestor

The prints were originally attributed to bears, but further analysis reveals that they don't match bears—or any known human ancestors either

The 'Ubeidiya site today is an expanse of grasses. Concealed from this view are slabs of fossilized pebbly clay, a source of ancient finds that have helped scholars learn about the journeys of Homo erectus.

What Drove Homo Erectus Out of Africa?

Excavations at a site in northern Israel are at the heart of a debate about the species' migrations

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