El homínido de Denísova u hombre de Denisova es el nombre dado a una posible nueva especie de Homo, identificada a través del análisis del ADN de restos óseos encontrados en Siberia, cuyo descubrimiento se anunció en marzo de 2010. Se ha sugerido que esta nueva especie vivió entre hace un millón de años y 40 000 años, en áreas en las que también vivían neandertales y Homo sapiens,aunque su origen se encontraría en una migración (salida de África) distinta a las asociadas con humanos modernos y neandertales.En caso de confirmarse como nueva especie de Homo, el nombre oficial podría ser Homo siberiensis, Homo altaiensis o más probablemente Homo denisoviensis. En contra de la opinión de la mayoría de los expertos, algunos opinan que debería tratarse como subespecie de H. sapiens.

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Human timelineview • discuss • -10 —–-9 —–-8 —–-7 —–-6 —–-5 —–-4 —–-3 —–-2 —–-1 —–0 —Human-likeapesNakalipithecusOuranopithecusSahelanthropusOrrorinArdipithecusAustralopithecusHomo habilisHomo erectusNeanderthalHomo sapiens←Earlier apes←Earliest bipedal←Early bipedal←Earliest stone tools←Earliest exitfrom Africa←Earliest fire use←Earliest cooking←Earliest clothes←Modern humansPleistocenePlioceneMioceneHominidsAxis scale: millions of years.also see {{Life timeline}} and {{Nature timeline}} Denisovan or Denisova hominin (pronunciation: /dᵻˈniːsəvə/ dɛ-NEE-sə-və) is an extinct species of human in the genus Homo. The species is sometimes given the name Homo sp. Altai, and Homo sapiens ssp. Denisova. In March 2010, scientists announced the discovery of a finger bone fragment of a juvenile female who lived about 41,000 years ago, found in the remote Denisova Cave in the Altai Mountains in Siberia, a cave that has also been inhabited by Neanderthals and modern humans. Two teeth belonging to different members of the same population have since been reported. In November 2015, a tooth fossil containing DNA was reported to have been found and studied. A bone needle dated to 50,000 years ago was discovered at the archaeological site in 2016 and is described as the most ancient needle known. Analysis of the mitochondrial DNA (mtDNA) of the finger bone showed it to be genetically distinct from the mtDNAs of Neanderthals and modern humans. Subsequent study of the nuclear genome from this specimen suggests that Denisovans shared a common origin with Neanderthals, that they ranged from Siberia to South-East Asia, and that they lived among and interbred with the ancestors of some modern humans, with about 3% to 5% of the DNA of Melanesians and Aboriginal Australians deriving from Denisovans. A comparison with the genome of a Neanderthal from the same cave revealed significant local interbreeding with local Neanderthal DNA representing 17% of the Denisovan genome, while evidence was also detected of interbreeding with an as yet unidentified ancient human lineage. Similar analysis of a toe bone discovered in 2011 is underway, while analysis of DNA from two teeth found in layers different from the finger bone revealed an unexpected degree of mtDNA divergence among Denisovans. In 2013, mitochondrial DNA from a 400,000-year-old hominin femur bone from Spain, which had been seen as either Neanderthal or Homo heidelbergensis, was found to be closer to Denisovan mtDNA than to Neanderthal mtDNA.

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