Re: Tears

Nicholas Rosen (
Thu, 13 Jul 1995 11:14:15 EDT

In article <3u1cae$>, (Phil Nicholls)
>All of this argues against tears being an outlet for salt excretion.
>If tears were a salt excretion they would have to be hypertonic
>(saltier than the eyeball or body fluids). Actually I believe I read
>someplace that human tears are usual slightly hypotonic.

But it doesn't necessarily argue against tears having been a salt
excretion at an earlier stage in hominid evolution, which, if I
understand her correctly, is the hypothesis that Elaine Morgan advances.

Nicholas Rosen
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