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What i meant was that why dont the fossils, or the animals alive today for that matter, show us that they have traits that doesnt have a function whatsoever (but have been in the past, or maybe (indirectly) is about to be used in the future).
So far, what i have seen, every organ has a function, and if we find a one that dont, then it is usually because of our lack of knowledge in that organ.
Humans have "goose bumps", which try to fluff up our hair so we can stay warmer...except that we don't have hair all over our bodies anymore.
The goose bump response to feeling chilled is a useless, left over response from our primate past.
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