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Homo erectus (/ ˌ h oʊ m oʊ ə ˈ r ɛ k t ə s / lit. ' upright man ') is an extinct species of archaic human from the Pleistocene, spanning nearly 2 million years.It is the first human species to evolve a humanlike body plan and gait, to leave Africa and colonize Asia and Europe, and to wield fire.
Later analyses by the Dmanisi research team have concluded that all the skulls likely represent the same taxon with significant age-related and sexual dimorphism, though this is not a universally held view. In 2006, the team favoured subsuming the taxon under Homo erectus as H. erectus georgicus or H. e. ergaster georgicus. The nomenclature is ...
Weidenreich concluded in 1940 that because of their anatomical similarity with modern humans it was necessary to gather all these specimens of Java and China in a single species of the genus Homo, the species H. erectus. [69] [70] Homo erectus lived from about 1.8 Ma to about 70,000 years ago – which would indicate that they were probably ...
Sexual dimorphism is the ... a difference between sexes was observed in the transcription of the PCDH11X/Y gene pair unique to Homo sapiens. [115] Sexual ...
Homo (from Latin homō 'human') is a genus of great ape (family Hominidae) that emerged from the genus Australopithecus and encompasses only a single extant species, Homo sapiens (modern humans), along with a number of extinct species (collectively called archaic humans) classified as either ancestral or closely related to modern humans; these include Homo erectus and Homo neanderthalensis.
The concept of sexual selection was introduced by Charles Darwin as an element of his theory of natural selection. [1] Sexual selection is a biological way one sex chooses a mate for the best reproductive success. Most compete with others of the same sex for the best mate to contribute their genome for future generations.
likewise, if homo erectus modern-like patterns of sexual dimorphism, he would have had significant (albeit moderate compared to the chimpanzee) dimorphism in body weight of roughly 16%, lean body mass dimorphism of 36% and lean muscle dimorphism of ~65% (up to 72% in the arms), as well as dimorphism in body composition (females having 1.6 more ...
Shearer, B.M. and Meyer, M.R. (2011) Sexual dimorphism in the geometry of the distal humeral condyle. American Journal of Physical Anthropology S(46): 201. Meyer, M.R. (2008). "Homo_erectus Skeletal indications for distance locomotion in early Homo erectus." American Journal of Physical Anthropology 135(S46): 155. Chang, M.L. and Meyer, M.R ...