Carbon dating live clam

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Of the 15,000 species of bivalves known as clams, some have life cycles of only one year.

Ming's status as the world's oldest animal was confirmed using the carbon-14 dating method.A number of stories are commonly circulated about a shell, or a piece of coal, or some other sample which supposedly yielded a radiocarbon date which could not possibly be correct.Such stories misrepresent the truth and do a disservice to science and public knowlege.This thick-bodied species can weigh 75 tonnes (74 long tons; 83 short tons) to 100 tonnes (98 long tons; 110 short tons), second only to the blue whale in weight.One rare form has atoms that are 14 times as heavy as hydrogen atoms: carbon-14, or C ratio gets smaller.There is, in fact, no indication anywhere in the original reference that these samples were from the "Pennyslvanian"; nor is there any hint that they were expected to be "300 million years old"; these appear to be purely apocryphal embellishments to the original account.

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