Subspecies. Is that more restrictive than “breed?” I mean, are white rhinocerii (sp?) more different from the common black kind than St. Bernards are from Chihuauas?
I was curious too. There’s actually a Southern White Rhino that is plentiful only a country or two away, but according to what I remember of my biology classes, they are sufficiently different to be a sub-species. Mayr and Ashlock (1991:43): “A subspecies is an aggregate of phenotypically similar populations of a species inhabiting a geographic subdivision of the range of that species and differing taxonomically from other populations of that species.”
Hope that clears it up ;-) A sub-species is more differentiated than a “breed”. For instance, dogs originated from domesticated wolves, but there is less genetic variation between dog breeds than between wolves – even if different breeds look so different.
Well, Barbra Streisand has proven that cloning works, let’s clone some of these up! Better use of technology than her stupid yappy mutts.
Well, the black ones are better, of course. White rhinos deserve to die out. They’re white.