Sudan, the last male northern white rhino, living in a Kenyan sanctuary under 24-hour armed guard.
Sudan, the last male northern white rhino, living in a Kenyan sanctuary under 24-hour armed guard. Brendon Easton PBS/Brendan Easton
Sudan, the last male northern white rhino, living in a Kenyan sanctuary under 24-hour armed guard. Brendon Easton PBS/Brendan Easton