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Hace 1 día · El fenómeno del Niño, acaecido entre los años 1982 y 1983, trajo intensas lluvias sobre las islas que repercutieron en una gran abundancia de alimento. Las semillas que constituían la dieta de la...
Hace 5 días · Genetics. One of the strongest evidences for common descent comes from gene sequences. Comparative sequence analysis examines the relationship between the DNA sequences of different species, [1] producing several lines of evidence that confirm Darwin's original hypothesis of common descent.
Hace 4 días · Finch, any of several hundred species of small conical-billed seed-eating songbirds (order Passeriformes). Well-known or interesting birds called finches include the bunting, canary, cardinal, chaffinch, crossbill, Galapagos finch, goldfinch, grass finch, grosbeak, sparrow, euphonia, and weaver.
Hace 4 días · Much of the evidence for evolution has been accused of being fraudulent at various times, including Archaeopteryx, peppered moth melanism, and Darwin's finches; these claims have been subsequently refuted.
Hace 4 días · According to Darwin, the 14 species of finches on the Galapagos Islands resemble each other and the finches along the coast of the South American mainland due to which of the following? The finches are descended from a relatively recent (several million years) common ancestor.
Hace 4 días · Busqueda de especies. Para buscar información sobre una especie, puedes ingresar su nombre común o su nombre científico, filtrar por categorías de riesgo de UICN o por origen, o generar un listado de todas las especies incluidas en una de nuestras Listas de Especies.
Hace 23 horas · Remember those famous finches from Darwin’s Galápagos Islands? They started from one ancestor but evolved into different species with totally different beak shapes and sizes each perfect for chowing down on different grub. This example driven by natural selection shows how different environments can create new species.
