Are all animals unable to digest roughage or only human beings?
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many animals like cows, buffaloes, goats, sheep, etc. are able to digest roughage.
it is due to human evolution that we are not able to digest roughage
previous homo erectus was able to digest roughage
it is due to human evolution that we are not able to digest roughage
previous homo erectus was able to digest roughage
Tulippanda:
Thanx very nice answer
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