In
biology and ecology,
extinction is the end of a
species or group of taxa. The moment of
extinction is generally considered to be the death of the last individual of that
species . Because a species' potential range may be...
Full article >>>Extinction in psychology refers to the lowering of the
probability of a response when a characteristic reinforcing stimulus is no longer presented. In classical conditioning, this refers to the decline of a conditioned response when a conditioned stimulus repeatedly...
Full article >>>Examines the
theory that we are currently living in an era of mass
extinction. Offers links to numerous articles and reports addressing the issue.
Full article >>>Jay Williams1 tells about an old woman who was living out the last days of her life. ... The rate of
extinction picked up rapidly when the climate became milder and ...
Full article >>>A number of
extinction concepts are discussed and loosely defined, followed by a ... But, in fact,
extinction is a rather complex phenomenon. ...
Full article >>>In
biology and ecology,
extinction is the ceasing of existence of a
species or a ... The Permian-Triassic
extinction alone killed off about 90 percent of marine ...
Full article >>>Animated Science, Health, Technology, Math, Social Studies and English movies, comic strips, activity pages and school homework help for kids.
Full article >>>Extinction of
animals and plants. Read scientific research on the dinosaur ...
Extinction Runs In The Family: Efforts To Preserve Evolutionary History ...
Full article >>>Updates and Web links for the essay on
Extinction ... New references on the KT
Extinction that have appeared since History of Life was ...
Full article >>>Looks at the invalid hypotheses and current arguments on what killed the dinosaurs. ... How does the K-T
extinction compare to this debacle? ...
Full article >>>Extinction occurs when an entire
species dies out. ...
Extinction Today. Lots More Information. See more " See all Evolution articles ...
Full article >>>EXTINCTION ... The
extinction rate of today may be 1,000 to 10,000 times the biological ... We will have produced an
extinction debt that has to be paid. ...
Full article >>>... that threatens to rival the five great mass
extinctions of the geological past. ... first glance, the physically caused
extinction events of the past might ...
Full article >>>An examination of past
extinctions and the potential for another wave. ... When Species Die. Five mass
extinctions have occurred since life began on Earth. Are ...
Full article >>>Extinction biology, the end of existence of a group of organisms, caused by ...
Extinction - Wikipedia, the free encyclopedia ...
Full article >>>The death of the dinosaurs wasn't unique. There have been 17 major
extinctions of life during the past 600 million years. And, in most cases, an asteroid probably ...
Full article >>>The Ordovician-Silurian
Extinction, 440-450 million years ago at the end of the ... Clearly they must have survived the
extinction event, but in very low numbers. ...
Full article >>>Movement offering humanitarian alternative to
human disasters.
Full article >>>'"/>