Sudan the Rhino

Yesterday, Sudan's health had improved slightly; he seemed to savor a mud bath in the rain, his caretakers said.  Sudan is 45 years old, and since 2009 he and two females--Najin and Fatu--have lived at Ol Pejeta Reserve in Kenya, cared for and protected 24 hours a day.
Sudan is the last surviving Northern White Rhinoceros.
You can view him here:  http://www.bbc.com/news/world-africa-43300713
I have made a sketch of him: the sketch channels, a bit, life, I hope.