PARIS, Aug 7 ― New research suggests that the presence of the appendix is correlated with greater longevity in mammals. Far from being an unnecessary organ, its presence could help mammals to be more resistant and reduce their risk of death from infection. The appendix does not have a good...
PARIS, Aug 7 ― New research suggests that the presence of the appendix is correlated with greater longevity in mammals. Far from being an unnecessary organ, its presence could help mammals to be more resistant and reduce their risk of death from infection.
According to researchers, the appendix appeared 80 million years ago in mammals. Since then, “over the course of evolution, [it] has developed independently multiple times in several mammalian lineages, with no obvious correlation with diet, social life, or the environment,” reports France's National Institute of Health and Medical Research, Inserm.
The scientists analyzed data from 258 mammals. Of these, 219 had no appendix and 39 did. They focused on the theoretical maximum longevity of the animals, namely “the theoretical lifespan of mammals, established based on their weight.” They also looked at “actual maximum longevity of the various species considered.”
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