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Behavioral sink" is a term invented by ethologist John B. Calhoun to describe a collapse in behavior that can result from overpopulation. The term and concept derive from a series of over-population experiments Calhoun conducted on Norway rats between 1958 and 1962. [ 1 ]
John Bumpass Calhoun (May 11, 1917 – September 7, 1995) was an American ethologist and behavioral researcher noted for his studies of population density and its effects on behavior. He claimed that the bleak effects of overpopulation on rodents were a grim model for the future of the human race.
The timeline of the evolutionary history of life represents the current scientific theory outlining the major events during the development of life on planet Earth. Dates in this article are consensus estimates based on scientific evidence , mainly fossils .
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Calhoun is the second daughter of John B. Calhoun, an ethicist best known for behavioral sink theory.. She earned her Ph.D. in philosophy at the University of Texas, Austin in 1981, and taught at College of Charleston and Colby College before moving to Arizona State in 2007.
Behavioral modernity is a suite of behavioral and cognitive traits believed to distinguish current Homo sapiens from other anatomically modern humans, hominins, and primates. [1] Most scholars agree that modern human behavior can be characterized by abstract thinking , planning depth, symbolic behavior (e.g., art , ornamentation ), music and ...
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The images are the first captured of the Titan since it began its journey into the depths of the Atlantic Ocean carrying five excited passengers before imploding less than two hours later. (AP)