[thedoc (OP)]

Why are conservation groups supporting the sale of licenses to hunt the endangered Black Rhino?
Read a transcript of the interview by clicking here
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[CliffordK]

Do rhinos "pair-up"?  Or do they allow males to mate with multiple females?  Perhaps then it is reasonable to select certain males to be removed from the herd.

What about a "tranquilizer permit"?  Tranquilize the more aggressive males.  Take their horns for whatever use desired, and see if they would be less of a danger to the herd without the horns. 

Of course, the best thing to do would be to educate people not to buy rhino horn or elephant tusk products.