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The muscles connected to the ears of a human do not develop enough to have the same mobility allowed to monkeys. Arrows show the vestigial structure called Darwin's tubercle. In the context of human evolution, vestigiality involves those traits occurring in humans that have lost all or most of their original function through evolution. Although ...
Vestigiality is the retention, during the process of evolution, of genetically determined structures or attributes that have lost some or all of the ancestral function in a given species. [1] Assessment of the vestigiality must generally rely on comparison with homologous features in related species.
This phenomenon is an automatic-response mechanism that activates even before a human becomes consciously aware that a startling, unexpected or unknown sound has been "heard". [2] That this vestigial response occurs even before becoming consciously aware of a startling noise would explain why the function of ear-perking had evolved in animals.
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See also Human vestigiality#Coccyx. All humans had a tail at a point in early life. Graeme Bartlett 12:53, 30 April 2018 (UTC) Indeed, see Prenatal development, which has several pictures of embroys before they lose their vestigal tails. --Jayron 32 16:00, 30 April 2018 (UTC)
This also seems somewhat less dubious, both as a human-specific vestigiality, and the the variation seems to be less possibly accidental, but actually representing different degrees of vestigiality (which is not to place any particular continent population at any hierarchical "kickass" or "loser" place on the "evolutionary scale", not even as ...
The science is based on the preferential fractionation of lighter or heavier isotopes, which results in enriched and depleted isotopic signatures compared to a standard value. Essential elements for life such as carbon, nitrogen, oxygen, and sulfur are the primary stable isotope systems used to interrogate archeological discoveries.
Human biology is an interdisciplinary area of academic study that examines humans through the influences and interplay of many diverse fields such as genetics, evolution, physiology, anatomy, epidemiology, anthropology, ecology, nutrition, population genetics, and sociocultural influences.