A dog is seen during the "Blocao" dog carnival in Rio de Janeiro, Brazil, Sunday, Feb. 16, 2014. About 100 dogs have had their day at a pre-Carnival bash in Rio de Janeiro. A 10-man brass band and a singer belting out Rio's anthem song "Cidade Maravilhosa" (Marvelous City) kicked off the four-footed fest as dog owners gathered to party down with pooches on Copacabana beach Sunday. (AP Photo/Silvia Izquierdo)
A woman holds up her dog Nick during the "Blocao" dog carnival in Rio de Janeiro, Brazil, Sunday, Feb. 16, 2014. About 100 dogs have had their day at a pre-Carnival bash in Rio de Janeiro. A 10-man brass band and a singer belting out Rio's anthem song "Cidade Maravilhosa" (Marvelous City) kicked off the four-footed fest as dog owners gathered to party down with pooches on Copacabana beach Sunday. (AP Photo/Silvia Izquierdo)
A dog dressed up for carnival is seen during the "Blocao" dog carnival in Rio de Janeiro, Brazil, Sunday, Feb. 16, 2014. About 100 dogs have had their day at a pre-Carnival bash in Rio de Janeiro. A 10-man brass band and a singer belting out Rio's anthem song "Cidade Maravilhosa" (Marvelous City) kicked off the four-footed fest as dog owners gathered to party down with pooches on Copacabana beach Sunday. (AP Photo/Silvia Izquierdo)
People dance with their dogs dressed for carnival, during the "Blocao" dog carnival in Rio de Janeiro, Brazil, Sunday, Feb. 16, 2014. About 100 dogs have had their day at a pre-Carnival bash in Rio de Janeiro. A 10-man brass band and a singer belting out Rio's anthem song "Cidade Maravilhosa" (Marvelous City) kicked off the four-footed fest as dog owners gathered to party down with pooches on Copacabana beach Sunday. (AP Photo/Silvia Izquierdo)
Dogs stand next to "Fuleco", the official mascot of the 2014 FIFA World Cup, during the "Blocao" dog carnival in Rio de Janeiro, Brazil, Sunday, Feb. 16, 2014. About 100 dogs have had their day at a pre-Carnival bash in Rio de Janeiro. A 10-man brass band and a singer belting out Rio's anthem song "Cidade Maravilhosa" (Marvelous City) kicked off the four-footed fest as dog owners gathered to party down with pooches on Copacabana beach Sunday. (AP Photo/Silvia Izquierdo)
A multicolored dog is seen during the "Blocao" dog carnival in Rio de Janeiro, Brazil, Sunday, Feb. 16, 2014. About 100 dogs have had their day at a pre-Carnival bash in Rio de Janeiro. A 10-man brass band and a singer belting out Rio's anthem song "Cidade Maravilhosa" (Marvelous City) kicked off the four-footed fest as dog owners gathered to party down with pooches on Copacabana beach Sunday. (AP Photo/Silvia Izquierdo)
A dog sniffs at "Fuleco", the official mascot of the 2014 FIFA World Cup, during the "Blocao" dog carnival in Rio de Janeiro, Brazil, Sunday, Feb. 16, 2014. About 100 dogs have had their day at a pre-Carnival bash in Rio de Janeiro. A 10-man brass band and a singer belting out Rio's anthem song "Cidade Maravilhosa" (Marvelous City) kicked off the four-footed fest as dog owners gathered to party down with pooches on Copacabana beach Sunday. (AP Photo/Silvia Izquierdo)
A dog dressed in bunny ears is seen during the "Blocao" dog carnival in Rio de Janeiro, Brazil, Sunday, Feb. 16, 2014. About 100 dogs have had their day at a pre-Carnival bash in Rio de Janeiro. A 10-man brass band and a singer belting out Rio's anthem song "Cidade Maravilhosa" (Marvelous City) kicked off the four-footed fest as dog owners gathered to party down with pooches on Copacabana beach Sunday. (AP Photo/Silvia Izquierdo)
A man and his cat attend the "Blocao" dog carnival in Rio de Janeiro, Brazil, Sunday, Feb. 16, 2014. About 100 dogs have had their day at a pre-Carnival bash in Rio de Janeiro. A 10-man brass band and a singer belting out Rio's anthem song "Cidade Maravilhosa" (Marvelous City) kicked off the four-footed fest as dog owners gathered to party down with pooches on Copacabana beach Sunday. (AP Photo/Silvia Izquierdo)