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Reason for different animals' longevity

  1. Jan 14, 2017 #1


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    Is there a biological consensus about why some species live so much longer than other species? You can sort of understand aging as a matter of the body just wearing out with time. But that doesn't explain why, for instance, dogs go through a similar aging process as humans (gray hair, arthritis, cancer, etc.) decades earlier than humans do. Is the difference the length of our telomeres? Or our pulse rates? Or what?
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  3. Jan 14, 2017 #2


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  4. Jan 14, 2017 #3


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    I'm not sure the article gives a concrete answer, but you may be interested in reading the following paper:

    Jones et al. 2014. Diversity of ageing across the tree of life. Nature 505: 169 http://dx.doi.org/10.1038/nature12789 [Broken]
    In particular, the article has this really nice figure of relative mortality (red) and fertility (blue) as a function of age for a number of different organisms:

    For a discussion of the biological factors involved in human aging, see:
    López-Otín et al. 2013. The Hallmarks of Aging. Cell 153: 1194. http://dx.doi.org/10.1016/j.cell.2013.05.039 [Broken]
    Last edited by a moderator: May 8, 2017
  5. Jan 14, 2017 #4


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    In the picture above, spot the odd one out.
    Cheeky immortal bastards!
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