I saw this post on the flyshop.com bulletin board. I thought it was kind of intresting.

"Had a conversation with a friend who frequently goes on safari in Africa that I thought others might find interesting. According to my friend there are several outfitters in Africa now that provide what might best be described as catch-and-release hunting for rhinoceros. Evidently the "hunter" darts a rhinoceros with a sedative, and then poses for a photo with the sleeping beast. After the picture, the rhinoceros is brought back to consciousness and sent on its marry way. Purportedly there is some scientific research involved, e.g., blood samples, tagging, etc., but for the most part its simply a way to allow more than one "hunter" to "harvest" the same rhino. All the other elements of the "hunt" are supposedly the same, i.e., the stalk, danger, etc., but the only trophy to show for a successful "hunt" is a photo. As might be imagined, it's not cheap–running into the multiple thousands for a "hunt." "