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ezragray

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About ezragray

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  1. Could one attempt to place each of the six human senses as they emerged through evolution in a chronological order or would that be over simplifying the process? If scientists consider smell/taste, and touch (touch in its earliest form) as more basic or primeval senses, then would sight and hearing by emerging later be considered more sophisticated or underdeveloped(younger) in comparison?
  2. At the risk of sounding simplistic, I wonder how old one could say each human sense is, evolutionarily speaking. I've read that the first sign of what could be called an eye appeared 550 million years ago but what could be said for the other 5 senses? I've read that hearing is in many ways an extension of the sense of touch, and its well known that smell and taste are conflated senses. Could this be the case for other senses (one being and extension of another)? How old could we say the sense of touch is? Assuming it to be a more basic sense, how basic (or old) could a lifeform and still experiencing what we call touch? I'd love to hear any theories on the subject. Thank you.
  3. ezragray

    Sense of Touch

    At the risk of sounding simplistic, I wonder how old one could say each sense is evolutionarilty speaking. I've read that the first sign of what could be called an eye appeared 550 million years ago but what could be said for the other 5 senses? I've read that hearing is in many ways an extension of the sense of touch, could this be the case for other senses (be extensions of others)? How old could we say the sense of touch is? Assuming it to be a more basic sense, how basic could a lifeform be while still experiencing what we call touch? Any insight would be greatly appreciated. Thank you.
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