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Contents
- Sweet Confusion: Does high fructose corn syrup deserve such a bad rap?
- Closed Thinking: Without scientific competition and open debate, much psychology research goes nowhere
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Contents
- Better chow yields more milk: A more nutritious form of corn for dairy cows boosts farm profits, teen investigator finds
- Fuzzy future: Kids may suffer impaired vision from spending too little time outdoors, studies suggest
- Building with moon rocks: Working on the moon with lunar soil and grit could prove easier, more efficient and less costly than using earthly materials
Anthropology
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An extended period of childhood evolved in people at least 160,000 years ago.
T. Smith/PNAS
- For the first time, researchers have observed wild chimpanzees making and using tools to hunt other animals, a practice adopted mainly by adult females and youngsters.
- New radiocarbon dates indicate that the Clovis people, long considered the first well-documented settlers of the New World, inhabited North America considerably later and for a much shorter time than previously thought.
- Researchers have uncovered evidence of a chimpanzee stone age that started at least 4,300 years ago in West Africa.
- Neandertals that 43,000 years ago inhabited what's now northern Spain faced periodic food shortages and possibly resorted to cannibalism to survive.
- The partial skeleton of a human ancestor previously found in South Africa dates to about 2.2 million years ago, roughly 1 million years younger than the original estimates.
- A new analysis of Stone Age sites indicates that a division of labor first emerged in modern-human groups living in the African tropics around 40,000 years ago, providing our ancestors with a social advantage over Neandertals.
- Researchers have retrieved and analyzed a huge chunk of Neandertal DNA.
- A heated debate has broken out among anthropologists over whether a highly publicized partial skeleton initially attributed to a new, tiny species of human cousins actually comes from a pygmy Homo sapiens with a developmental disorder.
- Researchers have announced the discovery of the oldest and most complete fossil child in our evolutionary family yet found.
- A controversial report concludes that Neandertals lived on southwestern Europe's Iberian coast until 24,000 years ago, sharing the area for several thousand years with modern humans before dying out.
- A slab of stone found by road builders in southern Mexico may contain the oldest known writing in the Americas, although some scientists regard the nearly 3,000-year-old inscriptions cautiously.
- Chimpanzees use stones to crack nuts in an African region far from where that behavior was thought to be relegated.
- As scientists discover traits shared by human and ape ancestors millions of years ago, they try to fill in the gaps of human evolution.
- Investigators have discovered a gene that shows signs of having evolved rapidly in people and of having made a substantial contribution to the emergence of a uniquely human brain.
- New measurements bolster the 2-year-old claim that fossils of a half-size human ancestor found on an Indonesian island represent a new species.
- Miniature humans whose prehistoric remains were recently unearthed on an Indonesian island may have had a genetic disease known as Laron syndrome.
- A 4,500-year-old human skeleton found in Mexico represents the earliest instance in the Americas of intentionally modified teeth, apparently to create space for a ceremonial mouthpiece.
- A surprising amount of genetic diversity characterized Neandertals.
- A controversial new genetic comparison suggests that human and chimpanzee ancestors interbred for several million years before evolving into reproductively separate species no more than 6.3 million years ago.
- A new investigation of DNA that was obtained from modern cattle and from fossils of their ancient, wild ancestors challenges the idea that herding and farming groups in the Near East domesticated cattle about 11,000 years ago.
- A half-dozen burials at sites in Europe and western Asia dating to between 27,000 and 23,000 years ago provide clues to possible human sacrifices.
- A scientific debate has broken out over whether a French cave excavated more than 50 years ago contains evidence of separate Stone Age occupations by Neandertals and modern humans.
- Excavations of Neandertal artifacts have yielded a trove of thin, double-edged stone blades that researchers usually regard as the work of Stone Age people who lived much later.
- A new analysis of bones from a tiny evolutionary cousin of people found on a Pacific island indicates that these late Stone Age individuals carried a lot of weight on short frames and had extremely strong legs.
- Bones from a spinal column discovered at a nearly 1.8-million-year-old site support the controversial possibility that ancient human ancestors spoke to one another.
- Fossils of a 4.1-million-year-old human ancestor in Ethiopia bolster the controversial idea that early members of our evolutionary family arose one species at a time rather than branching out into numerous species.
- Researchers have discovered the oldest known examples of dental work, 11 teeth with drilled holes dating to between 9,000 and 7,500 years ago.
- Pairs of adult males in a community of wild African chimps often communicate with gestures.
- Wild capuchin monkeys manage to avoid inbreeding, despite rampant opportunities for high-status fathers to mate with their grown daughters.
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Not to miss
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Coverage of the 2013 American Association for the Advancement of Science meeting
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The Year in Science 2012
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Three-part series on the scientific struggle to explain the conscious self
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