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Re: Gall bladder redux

In a message dated 8/22/00 4:29:12 PM EST, lpd4@cornell.edu writes:

<< I believe rats lack gall bladders. >>

Long ago (1963) I held a summer job in a medical research hospital during 
which one of my tasks was dissecting lab rats and removing their livers. (The 
livers were instantly frozen in a fluid mixture of alcohol and dry ice, which 
solidified them like porcelain, to prevent spoilage.) Their livers divide 
into three well-defined sections, and I recall no yellow-green organ among 
them. So unless their gall bladders are small or vestigial, or colored 
differently from primate gall bladders so as to be unnoticeable, you're right 
about rat gall bladders.