Science

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Science

¿Por qué a ella no le dio alzhéimer? La respuesta podría ser clave para combatir la enfermedad

SaludInvestigadores en Colombia y Estados Unidos descubrieron a una mujer con una mutación genética extraña que la ha protegido de la demencia a pesar de que su cerebro ha desarrollado características neurológicas significativas de la enfermedad.Francisco Lopera, neurólogo de la Universidad de Antioquia en Medellín, ha estado recolectando cerebros, nacimientos y defunciones de una familia colombiana para estudiar el alzhéimer.
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Stalking the Endangered Wax Palm

Before sequoias were discovered in California, the wax palm was considered the world’s tallest tree, with some growing 200 feet high.When Alexander von Humboldt came through in 1801, he encountered no way stations or farmhouses, just wax palm forests and mule trails.
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They Didn’t Find Life in a Hopeless Place

Science|They Didn’t Find Life in a Hopeless PlaceTrilobitesIn some of the world’s saltiest, most acidic bodies of superheated water, even the most extreme forms of archaea couldn’t survive.If an organism could survive in such an unforgiving place, scientists would need to expand their search parameters for life in more unwelcoming corners of other worlds.
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In the Blue Holes of the Bahamas, Secrets of Hurricanes Past

Science|In the Blue Holes of the Bahamas, Secrets of Hurricanes PastTrilobitesScientists assembled a 1,500-year history of big storm activity by retrieving sediment from the island country’s submarine caverns.Now, researchers have assembled a 1,500-year history of hurricanes in the Bahamas, based on sand and shell fragments pulled up from submarine caverns known as blue holes.
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Why Do Parrots Waste So Much Food?

Science|Why Do Parrots Waste So Much Food?The new study provides “a comprehensive picture of parrots’ food wasting behavior in their natural environment,” said Anastasia Krasheninnikova, a biologist at the Max Planck Comparative Cognition Research Group in Spain, an independent commenter.
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