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Old 02-06-2014, 08:10   #231
GratefulCitizen
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Join Date: Aug 2007
Location: Page/Lake Powell, Arizona
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Quote:
Originally Posted by Broadsword2004 View Post
Macroevolution would just be the summation of long periods of microevolution.
No, it would not.

A moth which has a slight color difference giving it better camouflage survives, passing on that slight variation.
Natural selection (microevolution) selects creatures which are more fit immediately.

A leg which is starting to turn into a wing would make a crummy leg/useless wing and the creature would not survive nor would the variation be passed.
Macroevolution is actively prevented by natural selection.

Quote:
Originally Posted by Broadsword2004 View Post
The portion of Newton's calculations that got us to the Moon were not wrong though.
Newtonian mechanics were close enough to serve that purpose.
That doesn't imply that they were "correct".

Ptolemy had a model for the solar system which worked well enough to serve its purposes.
After 1500 years, some believed it to be absolute truth.

Two-dimensional trigonometry is close enough for short range Terran navigation.
Spherical trigonometry is necessary for long range Terran navigation.
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Last edited by GratefulCitizen; 02-06-2014 at 08:18.
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