A disguised dog is seen during the "Blocao" dog carnival parade in Rio de Janeiro, Brazil, Sunday, Feb. 3, 2013. According to Rio's tourism office, Rio's street Carnival this year will consist of 492 block parties, attended by an estimated five million Carnival enthusiasts. (AP Photo/Silvia Izquierdo)
A woman carries her disguised dog during the "Blocao" dog carnival parade in Rio de Janeiro, Brazil, Sunday, Feb. 3, 2013. According to Rio's tourism office, Rio's street Carnival this year will consist of 492 block parties, attended by an estimated five million Carnival enthusiasts. (AP Photo/Silvia Izquierdo)
A dog wears a blonde wig during the "Blocao" dog carnival parade in Rio de Janeiro, Brazil, Sunday, Feb. 3, 2013. According to Rio's tourism office, Rio's street Carnival this year will consist of 492 block parties, attended by an estimated five million Carnival enthusiasts. (AP Photo/Silvia Izquierdo)
A disguised dog lis seen during the "Blocao" dog carnival parade in Rio de Janeiro, Brazil, Sunday, Feb. 3, 2013. According to Rio's tourism office, Rio's street Carnival this year will consist of 492 block parties, attended by an estimated five million Carnival enthusiasts. (AP Photo/Silvia Izquierdo)
Dogs wear Brazil's national soccer team jerseys during the "Blocao" dog carnival parade in Rio de Janeiro, Brazil, Sunday, Feb. 3, 2013. According to Rio's tourism office, Rio's street Carnival this year will consist of 492 block parties, attended by an estimated five million Carnival enthusiasts. (AP Photo/Silvia Izquierdo)
A disguised dog is seen during the "Blocao" dog carnival parade in Rio de Janeiro, Brazil, Sunday, Feb. 3, 2013. According to Rio's tourism office, Rio's street Carnival this year will consist of 492 block parties, attended by an estimated five million Carnival enthusiasts. (AP Photo/Silvia Izquierdo)
People carry their disguised dogs during the "Blocao" dog carnival parade in Rio de Janeiro, Brazil, Sunday, Feb. 3, 2013. According to Rio's tourism office, Rio's street Carnival this year will consist of 492 block parties, attended by an estimated five million Carnival enthusiasts. (AP Photo/Silvia Izquierdo)
A disguised dog is seen during the "Blocao" dog carnival parade in Rio de Janeiro, Brazil, Sunday, Feb. 12, 2012. (AP Photo/Silvia Izquierdo) (AP2012)
People pose with their disguised dogs during the "Blocao" dog carnival parade in Rio de Janeiro, Brazil, Sunday, Feb. 3, 2013. According to Rio's tourism office, Rio's street Carnival this year will consist of 492 block parties, attended by an estimated five million Carnival enthusiasts. (AP Photo/Silvia Izquierdo)
People take their dogs to the "Blocao" dog carnival parade in Rio de Janeiro, Brazil, Sunday, Feb. 12, 2012. (AP Photo/Silvia Izquierdo) (AP2012)
A dog disguised as a devil is seen during the "Blocao" dog carnival parade in Rio de Janeiro, Brazil, Sunday, Feb. 12, 2012. (AP Photo/Silvia Izquierdo) (AP2012)
A disguised dog licks water during the "Blocao" dog carnival parade in Rio de Janeiro, Brazil, Sunday, Feb. 12, 2012. (AP Photo/Silvia Izquierdo) (AP2012)
A disguised dog is seen during the "Blocao" dog carnival parade in Rio de Janeiro, Brazil, Sunday, Feb. 12, 2012. (AP Photo/Silvia Izquierdo) (AP2012)
People take their dogs to the "Blocao" dog carnival parade in Rio de Janeiro, Brazil, Sunday, Feb. 12, 2012. (AP Photo/Silvia Izquierdo) (AP2012)
A man and a woman take their dog to the "Blocao" dog carnival parade in Rio de Janeiro, Brazil, Sunday, Feb. 12, 2012. (AP Photo/Silvia Izquierdo) (AP2012)
People take their dogs to the "Blocao" dog carnival parade in Rio de Janeiro, Brazil, Sunday, Feb. 12, 2012. (AP Photo/Silvia Izquierdo) (AP2012)