Evolution Message Board - Msg: 29111756

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Politics : Evolution

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To: Brumar89 who wrote (41520)	9/13/2013 5:44:31 PM
From: 2MAR$	Read Replies (1) of 69300

Cambrian explosion was indeed marked by lightning-fast evolution nbcnews.com The team found that the emergence of many sea creatures during the Cambrian explosion could be explained by an accelerated — but not unrealistic — evolution by way of natural selection, or the process in which organisms change over time due to changes in heritable physical or behavioral traits. (For instance, changes that give an organism a leg up will help it survive to pass down that trait to offspring.) The team focused its study on animals related to arthropods, the group that includes crustaceans and other insects. "In this study we've estimated that rates of both morphological and genetic evolution during the Cambrian explosion were five times faster than today – quite rapid, but perfectly consistent with Darwin's theory of evolution," Lee said.

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