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Adaptations in humans can be physiological, genetic, or cultural, which allow people to live in a wide variety of climates. There has been a great deal of research done on developmental adjustment, acclimatization , and cultural practices, but less research on genetic adaptations to colder and hotter temperatures.
This is a uniquely human experience, as other animals are able to give birth on their own and often choose to isolate themselves to do so to protect their young. [2] [citation needed] An example of a genetic adaptation unique to humans is the gene apolipoprotein E (APOE4) on chromosome 19.
Adaptation affects all aspects of the life of an organism. [24] The following definitions are given by the evolutionary biologist Theodosius Dobzhansky: 1. Adaptation is the evolutionary process whereby an organism becomes better able to live in its habitat or habitats. [25] [26] [27] 2.
Recent human evolution refers to evolutionary adaptation, sexual and natural selection, and genetic drift within Homo sapiens populations, since their separation and dispersal in the Middle Paleolithic about 50,000 years ago. Contrary to popular belief, not only are humans still evolving, their evolution since the dawn of agriculture is faster ...
First studied as an adaptive mechanism specific to humans, [1] cognitive specialization has since evolved to encompass many behaviors in the social realm. Organisms have evolved over millions of years to become well-adapted to their habitats; this requires becoming specialized in behaviors that improve an organism's likelihood of survival and reproduction.
The development of the modern human has taken place over some 300,000 years and unique adaptations have resulted from ecological pressures that Homo Sapiens has faced. Due prominently to ecological and behavioral factors, the modern human muscular system differs greatly from that of our early primate ancestors. [3]
Each individual in a population has a unique role in their particular environment. This role, commonly known as an ecological niche, is simply how an organism lives in an environment in relation to others. [3] Over successive generations, the organism must adapt to their surrounding conditions in order to develop their niche.
This unique anatomical feature separates humans from apes and other nonhuman primates, and is not seen in human fossils older than 1.8 million years. [ 194 ] Bernard Wood noted that Paranthropus co-existed with the early Homo species in the area of the "Oldowan Industrial Complex" over roughly the same span of time.