Ah. I see. Well I suppose that will definitely be a problem in humans. We aren't subject to natural selection like animals are. We preserve those "bad" genes through modern medicine, and they get passed on.
As for how that would apply in general, I guess 99% of all species to ever exist being extinct should mean something.
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Well actually, the degradations are 'invisible' to natural selection, so you don't generally notice them util they reach a lethal level. It's the same with the shortening of telomeres.
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Edited by Britton: 5/5/2015 4:39:23 PMBut what evidence is there that happens uniformly over time across an entire species?
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Edited by My Name Is John: 5/5/2015 4:57:00 PMJohn Stanford conducted research on it, it'll be online somewhere but I'm not sure where I'm afraid. I think it was average
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I found a thesis on it. But no experiments.