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Why do we even have a gall bladder?

Asked by Dutchess_III (46828points) May 30th, 2013

My daughter is having her gall bladder removed next week. I started to post a question about it, but got all the answers I needed from previous Fluther questions. But all of that leaves me with the question of WHY do we even have one if it’s (apparently) so expendable? Did it used to play a more important part in our bodies millions of years ago? Is it becoming a vestige?

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