Baldwinian evolution

From: Liz Lee (
Date: Tue Jan 06 1998 - 11:40:04 GMT

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Dear Stevan,
Can you explain the difference between Baldwinian evolution and
Lamarckian? I understand that the latter is based on 2 principles,
the first being that using any organ increases it's size (OK for
muscles but difficult to see how it applies to everything). The
second that supposes acquired characteristics can be inherited - the
blacksmith's arms being an example. What is the difference between
this second principle and Baldwinian evolution?

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