Re: tears

H. M. Hubey (
20 Oct 1995 17:05:35 -0400

David Froehlich <> writes:

>On 18 Oct 1995, H. M. Hubey wrote:

>> that no matter how you lose water i.e. via kidneys, sweating
>> or tears it has to be replenished. And if you excrete salt with
>> the fluids you are obviously excreting salt.

>reference my previous post, the basic point is efficiency. You assume
>access to a voluminous supply of fresh water because the tears are not
>concentrated (isotonic). Is this likely to be a major method for salt

I said no such thing. I already said it's not efficient as
it stands.

I commented on your claim that it would not work as a
method to excrete salt. I also did not say that we don't
need kidneys or that we did not have them.

Whether at one time the weeping was more regular or that
it was a large scale effort which would/could have been
used similar to kidneys is a different story and I said
nothing about either. So far it looks like weeping still
seems to be restricted to a specific set of animals.


Regards, Mark