The Black Rhino population has been decimated by poachers in the last 40 years. Translocation schemes are in place to move groups of the animals to sanctuary areas in an attempt to protect them.

黑犀牛的数量在过去40年里由于盗猎者的活动而大量减少，现在人们正在考虑将这种动物迁徙到安全地区进行保护。

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Rising demand, particularly from Vietnam, is said to be the main reason for the explosion in rhino killing last year that saw 668 animals slaughtered in South Africa.

BBC: S Africa fears 2013 rhino slaughter will break records

The slaughter of rhino, the decimation of elephant, the forlorn last stand of the tiger - all had their profiles raised as the delegates in Bangkok negotiated their fate.

BBC: Why such a fuss about extinction?

As I counted the hours on my last day at Desert Rhino Camp, I tried hard to remind myself of why I was there: to learn about rhino conservation, not to tick off a sighting.

BBC: Saving rhinos in Namibia