Re: Jacobson's Organs

[islest@UVic.CA (Timothy E. Isles)]

>Timothy E. Isles wrote:
>>
>> Darren, I've just been able to verify which animals have J.O.'s, as per
>> your list posting yesterday.  J.O.'s (formally called vomeronasals) are
>> found in amphibians, mammals, some reptiles but never in birds.  Does this
>> help?  If you require formal references I can send them to you off-list (or
>> post them here if anyone else is interested).
>>
>
>what about crocs?

I don't *think* that crocodiles have true vomeronasals, but I'll have to
check this out sometime to be absolutely sure.  It has been observed that
the American Alligator appears to employ "scent marking" and sex pheromones
but this is not well understood.

TIM ISLES
Department of Biology,
University of Victoria
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"You must try the weaker-species salad, Mr. T rex...it's absolutely barbaric!"