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Evolution of the Heart Image 1
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Evolution of the Heart (Image 1)

July 27, 2010
Embryo hearts show evolution of the heart from a three-chambered in frogs to a four-chambered in mammals. Recent research has found the first genetic link in the evolution of the heart from three-chambered to four-chambered, illuminating part of the puzzle of how birds and mammals became warm-blooded.


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