Tag - Evolución

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Colonial history and global economics distort our understanding of deep-time biodiversity

Source: Nature   Sampling biases in the fossil record distort estimates of past biodiversity. However, these biases not only reflect the geological and spatial aspects of the fossil record, but also...

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Supercomputer scours fossil record for Earth’s hidden extinctions

Source: NaturePalaeontologists have a fuzzy view of Earth’s history. An incomplete fossil record and imprecise dating techniques make it hard to pinpoint events that happened within geological eras...

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“La distancia entre el campeón del mundo de ajedrez y las máquinas es mayor que entre Usain Bolt y un Ferrari”

Fuente: El PaisAl ex campeón mundial de ajedrez Gari Kasparov aún le escuece: "No fue la primera partida que perdí contra una máquina. Fue la primera partida que perdí", dice. En 1997 Deep...

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In search of the ‘white jaguar’

Source: Science MagazineCHIAPAS STATE IN MEXICO—About 7 hours by kayak up the Tzendales River, our GPS receiver falls overboard and vanishes in the deep blue water. We are on the fourth day of an...

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The human body is a mosaic of different genomes

Source: NatureThe human body is a complex mosaic made up of clusters of cells with different genomes — and many of these clusters bear mutations that could contribute to cancer, according to a...

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Newly Discovered Ancient Carnivore Was Bigger Than a Polar Bear and Is True Nightmare Fuel

Source: GizmodoNew research describes the remains of a gigantic, four-legged mammalian carnivore that terrorized Africa some 22 million years ago.The name of this formidable creature is Simbakubwa...

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Complex societies precede moralizing gods throughout world history

Source: NatureAbstractThe origins of religion and of complex societies represent evolutionary puzzles1,2,3,4,5,6,7,8. The ‘moralizing gods’ hypothesis offers a solution to both puzzles by proposing...

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The ecological roots of human susceptibility to social influence

Source: RoyalSociety Open ScienceThe ecological roots of human susceptibility to social influence: a pre-registered study investigating the impact of early-life adversityPierre O. Jacquet , Lou Safra...

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Mum’s a Neanderthal, Dad’s a Denisovan

Source: NatureA female who died around 90,000 years ago was half Neanderthal and half Denisovan, according to genome analysis of a bone discovered in a Siberian cave. This is the first time scientists...

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Carnivorous-dinosaur auction reflects rise in private fossil sales

Source: NatureA fossil of a carnivorous dinosaur found in the United States is about to go under the hammer. The Parisian auction house managing the sale, scheduled for 4 June in the Eiffel Tower,...

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Genes of ‘extinct’ Caribbean islanders found in living people

Source: Science MagazineJorge Estevez grew up in the Dominican Republic and New York City hearing stories about his native Caribbean ancestors from his mother and grandmother. But when he told his...

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Debate blooms over anatomy of the world’s first flower

Source: NatureAn ambitious effort to reconstruct the world’s first flower has seeded a debate over what forms a blossom can and cannot take.The project, called eFLOWER, combined an unparalleled...

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Skeleton plundered from Mexican cave was one of the Americas’ oldest

Source: NatureA human skeleton — probably one of the Americas' oldest — was stolen from the Chan Hol Cave in Mexico soon after it was discovered in 2012. A human skeleton that was stolen from an...

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Ancient genomes show how maize adapted to life at high altitudes

Source: NatureGenome sequences from nearly 2,000-year-old cobs of maize (corn) found in a Utah cave paint a portrait of the crop at the dawn of its adaptation to the highlands of the US southwest....

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Geckos evolve rapidly in Brazil after new dam constructed

Source: Science MagazineThe construction of a dam in central Brazil has spurred remarkably fast evolution of geckos in the region. In just 15 years, the lizards’ heads have grown larger—an adaptation...

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US defence agencies grapple with gene drives

Source: NatureThe JASONs, a group of elite scientists that advises the US government on national security, has weighed in on issues ranging from cyber security ​to renewing America’s nuclear arsenal....

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How poverty affects the brain

Source: NatureIn the late 1960s, a team of researchers began doling out a nutritional supplement to families with young children in rural Guatemala. They were testing the assumption that providing...

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World's largest hoard of carbon dates goes global

Source: NatureRadiocarbon dating has long been used to reveal the age of organic materials — from ancient bones to wooden artefacts. Scientists are now using the amassed dates for wider applications,...

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Our obsession with eminence warps research

Source: NatureWe can quantify exactly how much faster Usain Bolt is than the next-fastest sprinter. It's much harder to say who is the best scientist, let alone how much better they are than the...

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Scientists Find 100 Million-Year-Old, Nearly Complete Baby Bird Trapped in Amber

Source: GizmodoThis has been a huge year for finding specimens in amber, from bird wings to dinosaur feathers to this ugly-ass bug. But this new finding might be the best one yet: a nearly complete...

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Scientists Find Genetic Mutation That Could Increase the Male Lifespan

Source: GizmodoProfessor S. Jay Olshansky once told Gizmodo, “In the world of aging sciences, if you want to live a long life, choose long-lived parents.” So genetic markers linked to longevity are...

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Newly-Unveiled Dinosaur Fossil is Best Preserved Of Its Kind | National Geographic

Source: National Geographic...

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How Does a 110-Million-Year-Old Dinosaur Still Have Its Skin?

Source: GizmodoThis 110 million year old fossil of an armored nodosaur is now on display at a natural history museum in Alberta, Canada. Image Credit and Copyright: Robert Clark/National GeographicAn...

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