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Caption: This shows Dr. Scott Mirceta preparing pig, cow, and whale muscle tissues for the analysis of the oxygen-storing protein myoglobin, the concentration of which is greatly elevated in elite mammalian divers. This image relates to a paper that appeared in the June 14, 2013, issue of Science, published by AAAS. The paper, by Scott Mirceta at University of Liverpool in Liverpool, UK, and colleagues was titled, "Evolution of Mammalian Diving Capacity Traced by Myoglobin Net Surface Charge."
Credit: [Image courtesy of M. Berenbrink]
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