Stormy
Stormy was a monkey in Dane's troop. His legs were paralyzed, but he nevertheless had an incredible amount of energy and determination that made him a favorite.
It's unclear how his legs got paralyzed, but AM was always fascinated by a wound at the base of Stormy's tail; a viewer speculated that Stormy may have suffered a fight injury that cost him the use of his legs.
Stormy had wounds on his buttocks, perhaps from his dragging himself around constantly. JW noted that these wounds were not healing, and that Stormy was experiencing pain trying to sit down. Eventually, Stormy's famous energy began to fade, and he passed away in his mother Stella's arms.
As is customary with monkeys, Stella carried Stormy's body with her for several days. At one point, she stored Stormy in a tree, got JW's attention, and walked him back to the tree to show him the body, as if to make sure he got to see Stormy one last time.