News tagged with ancestral origin
Study shows species can change
A study of South American songbirds completed by the Department of Biology at Queen's University and the Argentine Museum of Natural History, has discovered these birds differ dramatically in colour and song yet show very ...
Dec 08, 2011 |
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First 'genetic map' of Han Chinese may aid search for disease susceptibility genes
The first genetic historical map of the Han Chinese, the largest ethnic population in the world, as they migrated from south to north over evolutionary time. was published online today by the American Journal of Human Ge ...
Nov 25, 2009 |
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UC San Diego researchers in Florence explore new ways to search for lost Leonardo mural
(Phys.org) -- In 1505 Leonardo da Vinci began painting a mural – to commemorate the Battle of Anghiari – in the Palazzo Vecchio’s Great Hall, the seat of government in Renaissance Florence.
May 22, 2012 |
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Hitting snooze on the molecular clock: Rabies evolves slower in hibernating bats
The rate at which the rabies virus evolves in bats may depend heavily upon the ecological traits of its hosts, according to researchers at the University of Georgia, the U.S. Centers for Disease Control and Prevention and ...
May 18, 2012 |
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Genes underlying the key domestication process in sorghum and other cereals
A study by a team of university and government scientists led by a Kansas State University researcher, indicates that genes responsible for seed shattering -- the process by which grasses disseminate their seeds -- were under ...
May 14, 2012 |
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Re-evaluation of Wulagasaurus indicates Basal Hadrosaurine dinosaurs originated in Asia
Several hundred disarticulated bones have been recovered from a large dinosaur quarry of the Upper Cretaceous Yuliangzi Formation at the base of the Wulaga outcrop of Heilongjiang Province near the Sino-Russian ...
Other Sciences / Archaeology & Fossils
May 07, 2012 |
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Earth history and evolution
In classical mythology, the cypress tree is associated with death, the underworld and eternity. Indeed, the family to which cypresses belong, is an ancient lineage of conifers, and a new study of their evolution affords a ...
May 03, 2012 |
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Forensic science used to determine who's who in pre-Columbian Peru
Analysis of ancient mitochondrial DNA (mtDNA) has been used to establish migration and population patterns for American indigenous cultures during the time before Christopher Columbus sailed to the Americas. ...
Apr 23, 2012 |
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Adam's rib, revisited: Evolutionary divergence of mammalian sex chromosomes
(Phys.org) -- Males and females... Mars and Venus... XY and XX chromosomes -- all are common memes. At the same time, the evolution of therian (placental and marsupial) sex chromosomes is less widely understood. ...
Apr 18, 2012 |
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Slow snails, fast genes: Predatory snails refine venoms through continuous gene duplication
(Phys.org) -- When tropical marine cone snails sink their harpoon-like teeth into their prey, they inject paralyzing venoms made from a potent mix of more than 100 different neurotoxins.
Apr 10, 2012 |
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Afghans share unique genetic heritage, DNA analysis shows
A study by The Genographic Project has found that the majority of all known ethnic Afghans share a unique genetic heritage derived from a common ancestral population that most likely emerged during the Neolithic revolution ...
Mar 27, 2012 |
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From foraging to farming: the 10,000-year revolution
Excavation of 19,000-year-old hunter-gatherer remains, including a vast camp site, is fuelling a reinterpretation of the greatest fundamental shift in human civilisation – the origins of agriculture.
Other Sciences / Archaeology & Fossils
Mar 26, 2012 |
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