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Date: | Sun, 10 Jul 2005 19:41:37 -0500 |
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that should be *not* freely interbreeding. Wow, talk about your typos.
Nicholas Johnson
The University of Chicago
Committee on Evolutionary Biology
On Fri, 8 Jul 2005, Nicholas Johnson wrote:
> Its actually not about whether they can interbreed, its about whether
> there are barriers to reproduction. Thus you can have hybrids, so long
> as the populations are freely interbreeding theyre distinct species. For
> a strong advocacy of the Biological Species concept, the book Speciation
> by Jerry Coyne is a decent place to get started.
>
> Nicholas Johnson
>
> The University of Chicago
> Committee on Evolutionary Biology
>
> On Fri, 8 Jul 2005, Monfils, Paul wrote:
>
>> Fred,
>>
>> If interbreeding is the sole (or principle) criterion for speciation, where
>> do hybrids come from? Hybrids should be impossible if species, by
>> definition, cannot interbreed. Are the domestic dog, the wolf and the
>> coyote conspecific because they sometimes interbreed?
>>
>> Paul M.
>>
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