An example of punctuated equilibrium is human evolution, in which species seem to remain stable for very long spans of time and then abruptly develop into new species, or in the ra...
Punctuated equilibrium (also called punctuated equilibria) is a theory in
evolutionary biology which proposes that once species appear in the fossil
record they ...
The concept of punctuated equilibrium was, to some, a radical new idea when it
was first proposed by Stephen Jay Gould and Niles Eldredge in 1972. Now it is ...
According to them, most species are characterized by very long periods of relatively genetic inactivity - nothing much happens in their environment and so, lacking any particular evolutionary pressures, their genetic code doesn't really change much.
Essentially, tho... More »
Punctuated Equilibrium is a theory about how the evolutionary process works,
based on patterns of first appearances and subsequent histories of species in the
punc·tu·at·ed equilibrium. (pŭngk′cho͞o-ā′tĭd). n. 1. The theory that the
evolution of life on earth typically follows a pattern in which long periods of little ...
“punctuated equilibria” than by the notion of phyletic gradualism. The ... equilibria
, disturbed only “rarely” (i.e., rather often in the fullness of time) by rapid and ...
In 1972 Stephen Jay Gould took the scientific world by storm with his paper on
punctuated equilibrium. Challenging a core assumption of Darwin's theory of ...
theory of, Biology. a hypothesis holding that the evolution of species proceeds in
a characteristic pattern of relative stability for long periods of time interspersed ...