Depressing news from the Animal Kingdom

This falls under the "things that depress me beyond belief" department: http://news.yahoo.com/s/afp/20070612/wl_africa_afp/zambiawildlifepoaching_070612135653. I am an unabashed animal lover, and have always had a soft spot for rhinos, who are gentle giants in the animal world. Let me ask, what purpose did this poor animal's death serve? The only market for a rhino's horn is, you guessed it, the Middle East, where the horn is valued by Arabs as a dagger handle or in the Far East, where it is ground down because it is believed that it contains aphrodisiac qualities. For more on that, see here: http://animals.nationalgeographic.com/animals/mammals/white-rhinoceros.html.