This charging rhino illustration is part of my original watercolor painting of Black Rhinos. I love this illustration because the subject is in motion. It shows the strength and agility of this magnificent beast. The Black Rhino is critically endangered with its biggest threat being poaching. There are massive demands for the Black Rhino’s horns which are used for traditional medicine. Next to poaching, loss of habitat contributes to declines in the Black Rhino population (source, WWF).