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  Topic: Beyond A 'Speed Limit' On Mutations,, Species Risk Extinction< Next Oldest | Next Newest >  
oldmanintheskydidntdoit



Posts: 4999
Joined: July 2006

(Permalink) Posted: Oct. 04 2007,14:03   

This was just on slashdot
http://www.sciencedaily.com/releases/2007/10/071004100013.htm  
Quote
eldavojohn notes an article up at Science Daily on research demonstrating that smaller animals with warmer blood evolve faster than larger, colder animals. From the article: "Across species from fish to mammals, they found that rates of protein evolution showed the same body size and temperature dependence as metabolic rate. Specifically, their mathematical model predicts that a 10-degree increase in temperature across species leads to about a 300 percent increase in the evolutionary rate of proteins, while a tenfold decrease in body size leads to about a 200 percent increase in evolutionary rates."  

  
  6 replies since Oct. 04 2007,14:01 < Next Oldest | Next Newest >  

    


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