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Recent single-origin hypothesis
The single-origin hypothesis (or Out-of-Africa model) is one of two accounts of the origin of anatomically modern humans, Homo sapiens. Because of the scarcity of fossils and the discovery of important new finds every few years, researchers disagree about the details and sometimes even basic elements of human evolutionary history. According to the single-origin model, every species of the genus Homo but one, Homo sapiens, was driven extinct. This species had evolved in Eastern Africa between 100,000 and 200,000 years ago and, some time afterwards, in a relatively recent exodus, began colonizing the rest of the world. According to the single-origin model, these more recent migrants did not interbreed with the scattered descendants of earlier exodi.
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Fossils & Ruins News
August 29, 2026
Aug. 12, 2026 Ancient remains from Vietnam suggest diseases like yaws may have been passed from mother to child thousands of years ago, a form of transmission often assumed to indicate syphilis. The discovery ...
July 22, 2026 Ancient fern savannahs may have transformed parts of Europe into a wildfire-prone inferno during the end-Triassic mass extinction. New fossil evidence suggests the ferns repeatedly regrew after fires, creating fresh fuel that helped prolong the ...
July 12, 2026 Why do beaches today have seashells from clams and snails instead of brachiopods? A new study suggests the answer lies in Earth's greatest mass extinction, when warming oceans and falling oxygen levels wiped out animals that couldn't adapt. Species ...
June 18, 2026 Plague was already a deadly killer 5,500 years ago, long before cities, farming, or the rat-infested conditions usually linked to historic outbreaks. By analyzing ancient DNA from hunter-gatherer cemeteries in Siberia, researchers discovered early ...
June 11, 2026 For nearly 700 years, Indigenous hunters repeatedly used a bison kill site in central Montana—then suddenly stopped, even though bison were still abundant. Researchers uncovered evidence that ...
May 20, 2026 For decades, scientists believed ancient humans avoided dense rainforests, treating them as nearly impossible environments for early survival. But a groundbreaking discovery in West Africa is rewriting that story. Researchers uncovered evidence that ...
May 14, 2026 Scientists analyzing the genomes of thousands of people across Japan discovered evidence for a previously overlooked third ancestral group, challenging the long-accepted “dual origins” theory. The newly identified ancestry appears linked to the ...
May 13, 2026 Humans may have returned to Britain far earlier than scientists once believed — not long after the last ice sheet began retreating. New evidence suggests people were already moving into the British ...
May 11, 2026 The Toba supereruption 74,000 years ago was so massive it may have plunged Earth into years of darkness and cold, leading some scientists to believe humanity nearly went extinct. Yet archaeological ...
May 5, 2026 Long-forgotten ancient tablets have been decoded, uncovering a mix of magic, politics, and daily life from early civilizations. Among the discoveries are rare anti-witchcraft rituals meant to protect ...
Apr. 28, 2026 A new study suggests Neanderthals didn’t go extinct simply because of climate change or competition with Homo sapiens. Instead, the key difference may have been social connectivity—Homo sapiens formed stronger, more flexible networks that helped ...
Apr. 27, 2026 The mysterious collapse of the Maya civilization may not have been driven solely by drought after all. New evidence from lake sediments in Guatemala reveals that one key city, Itzan, enjoyed a stable climate even as its population abruptly vanished. ...
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Aug. 27, 2026 Ancient fossils suggest insects conquered land through a long amphibious phase rather than making an abrupt jump from water to dry ground. A newly identified 324-million-year-old species still ...
Aug. 25, 2026 Three forgotten Assyrian kings may have been hiding in plain sight for more than 2,700 years. By piecing together clues from tablets, inscriptions, and an ancient statue, researchers argue that these ...
Aug. 21, 2026 A tiny, fully intact Indigenous pot buried for roughly 400 years has left archaeologists wondering why such a usable object was deliberately abandoned. Found at a historic Potano-Timucua village in ...
Aug. 21, 2026 Scientists analyzing a 2,200-year-old Roman shipwreck found that its hull was coated with pine tar and, in one area, a mixture of tar and beeswax. Pollen trapped in those ancient coatings acted like ...
Aug. 20, 2026 Scientists have identified exceptionally rare soft tissue preserved in a 450-million-year-old crinoid fossil, more than 200 million years older than ...
Aug. 20, 2026 The human family tree may be due for a major rewrite. Researchers argue that Australopithecus and Paranthropus should be folded into the genus Homo because new fossils have blurred many of the traits ...
Aug. 19, 2026 Miocene South America was packed with giant prey—and the predators hunting them were just as spectacular. Fossil bite marks suggest crocodylians, especially the enormous Purussaurus neivensis, were ...
Aug. 19, 2026 A tomb in Egypt’s Theban Necropolis reveals a surprisingly organized story of burial, reuse, and changing beliefs spanning hundreds of years. Researchers found 16 mummified people, the remains of ...
Aug. 17, 2026 Scientists are searching some of Earth’s oldest rocks for tiny fossils that could reveal how simple microbial life made the extraordinary leap toward plants, animals, and other complex organisms. ...
Aug. 16, 2026 Scientists have discovered a new extinct amphibian species hiding in the fossil collections of Los Angeles’ La Brea Tar Pits. Named Spea labreae, the Ice Age spadefoot toad is an exceptionally rare ...