Free Republic
Browse · Search
News/Activism
Topics · Post Article

To: David
The "Punctuated Equilibrium" hypothesis is fundamentally inconsistent with the theory of evolution which requires movement of specie development in minute increments.

Wrong. There is nothing about Evolution which requires "species development in minute increments." Evolution only requires that natural selection favors (selects) certain indviduals for reproduction over others based on the suitability of those individuals to the environment in which they live. To the extent that such selection favors certain genetic mutations/characteristics and leads to the perpetuation of such genetic characteristics to the exclusion of others, speciation occurs.

Gould's hypothesis on punctuated equilibrium was that rather than this process occurring gradually over millions of generations, in the case of sufficient selective pressure, it would occur in a matter of thousands of generations. Such selective pressure could be provided by catastrophe or geographic isolation.

36 posted on 07/06/2005 8:30:46 PM PDT by hc87
[ Post Reply | Private Reply | To 14 | View Replies ]


To: hc87

Under punctuated equlibirium, you have to think of evolution as proceeding like John Travolta's career. Instead of a steady and linear procession, it consists of spectacular bursts of activity interspersed within long, boring lulls of failed attempts at variation :-)


38 posted on 07/06/2005 8:40:48 PM PDT by RightWingAtheist (Creationism is not conservative!)
[ Post Reply | Private Reply | To 36 | View Replies ]

Free Republic
Browse · Search
News/Activism
Topics · Post Article


FreeRepublic, LLC, PO BOX 9771, FRESNO, CA 93794
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson