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- Dec 26, 2003
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Given that the definition of the word "species" basically means a group of creatures that can inter-breed, I find that a strange discussion.
The definition of species has changed a lot in modern times - it's actually very difficult to pin down. When you look at a population there are always outriders who differ from the main population - many of these are thought to be from hybridisation.
Things like corals that broadcast spawn produce masses of hybrids.