Diceros bicornis longipes
The Western black rhinoceros was an extinct subspecies of black rhinoceros. It had distinctively longer legs and a square horn base in contrast to its cousins.
The Western black rhino was once widespread in the savanna of sub-Saharan Africa.
All sub species of black rhinoceros were hunted for their horns. Many people from Vietnam and China use rhino horns as medicine.
The Western black rhino was hunted massively between 1970 and 1992, and its population dropped from hundreds of thousands to just a few hundred. There were several attempts to artificial insemination, but these only worked intermittently.
In 2006, a 6 month survey was unable to find any western black rhinos. It was officially declared extinct in 2011.
There is no evidence that rhino horns have any medical value. Despite this Vietnam and China continue to experience strong demand.