Veterinary physiotherapist Livia Pereira (L) holds the head of paralyzed lion Ariel as a veterinary works on plasma exchange treatment machine in the living room of Pereira's home in Sao Paulo July 20, 2011. Pereira's home has turned into a hospital since the three-year-old lion started a landmark treatment to cure a rare autoimmune disease which paralyzed its legs about a year earlier. (Photo by Nacho Doce/Reuters)
