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A variety of stone tool technologies are present at the time of human expansion into Europe and show evidence of modern behavior. Despite the problems of conflating specific tools with cultural groups, the Aurignacian tool complex, for example, is generally taken as a purely modern human signature.
Explanation of the current form of species. How vs. Why Questions: Proximate. How an individual organism's structures function Ontogeny. Developmental explanations for changes in individuals, from DNA to their current form Mechanism. Mechanistic explanations for how an organism's structures work Evolutionary
One example is the evolutionary psychology model of extended social groups selecting for modern human brains, a contradiction being that the synaptic function of modern human brains require high amounts of many specific essential nutrients so that such a transition to higher requirements of the same essential nutrients being shared by all ...
The history of evolutionary psychology began with Charles Darwin, who said that humans have social instincts that evolved by natural selection.Darwin's work inspired later psychologists such as William James and Sigmund Freud but for most of the 20th century psychologists focused more on behaviorism and proximate explanations for human behavior.
Costly signaling theory in evolutionary psychology refers to uses of costly signaling theory and adaptationism in explanations for psychological traits and states. Often informed by the closely related fields of human behavioral ecology and cultural evolution, such explanations are predominantly focused on humans and emphasize the benefits of altering the perceptions of others and the need to ...
Dual inheritance theory (DIT), also known as gene–culture coevolution or biocultural evolution, [1] was developed in the 1960s through early 1980s to explain how human behavior is a product of two different and interacting evolutionary processes: genetic evolution and cultural evolution.
One aim of modern human behavioral ecology is to determine how ecological and social factors influence and shape behavioral flexibility within and between human populations. Among other things, HBE attempts to explain variation in human behavior as adaptive solutions to the competing life-history demands of growth, development, reproduction ...
The study of the evolution of emotions dates back to the 19th century. Evolution and natural selection has been applied to the study of human communication , mainly by Charles Darwin in his 1872 work, The Expression of the Emotions in Man and Animals . [ 1 ]