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Message: <blockquote data-quote="Nutcracker" data-source="post: 3457968" data-attributes="member: 18214">But if they did add Iran, would it get them any extra species that are definite WPal origin, or would they just be gaining some marginal Oriental species? If so, then why not poach another 100 km yet further and add some more . . and then another 100 km for more again . . . Oh, and then let's just include China while we're at it . . .No biogeographical region can ever have a really hard boundary (there's always something that will cross it), so you might as well stick to a widely-used, even if imperfect, artificial boundary.</blockquote>