Nature is practically essential to any animal's well-being, but sometimes things don't exactly turn out the way it should.  Will, a circus lion, has never experienced the feeling of actual grass or soil due to his life as a performer.  For 13 years he was forced to do tricks until he was rescued by Rancho Dos Gnomos and transferred to an animal sanctuary focusing on abused and exploited animals in Brazil.  

Losing all of his natural survival instincts, Will would not have survived in the wild and was basically a caged animal much of his life.  You can watch his cat-like reactions in the short, but inspiring video below. 

"Will died in 2011 after five years of “tranquillity” at the sanctuary. “He loved to lie in grass and look at the sky. He was a very happy lion"

-Marcos Pompeo