A dog in costume attends the carnival pet parade in Rio de Janeiro, Brazil, Sunday, Jan. 31, 2016. People dressed their pets up for the annual block parade held near Copacabana beach. (AP Photo/Leo Correa)
A dog in costume attends a carnival pet parade in Rio de Janeiro, Brazil, Sunday, Jan. 31, 2016. People dressed their pets up for the annual block parade held near Copacabana beach. (AP Photo/Leo Correa)
Pet owners hold their dogs which they dressed up in carnival costumes for a pet parade in Rio de Janeiro, Brazil, Sunday, Jan. 31, 2016. People dressed up their pets for the annual carnival block party held near Copacabana beach. (AP Photo/Leo Correa)
A dog wearing a jester costume attends a carnival pet parade in Rio de Janeiro, Brazil, Sunday, Jan. 31, 2016. People dressed their pets up for the annual block parade held near Copacabana beach. (AP Photo/Leo Correa)
Dogs in costume interact during a carnival pet parade in Rio de Janeiro, Brazil, Sunday, Jan. 31, 2016. People dressed their pets up for the annual block parade held near Copacabana beach. (AP Photo/Leo Correa)
A dog in costume attends the carnival pet parade in Rio de Janeiro, Brazil, Sunday, Jan. 31, 2016. People dressed their pets up for the annual block parade held near Copacabana beach. (AP Photo/Leo Correa)
A masked dog interacts with another dog at a carnival pet parade in Rio de Janeiro, Brazil, Sunday, Jan. 31, 2016. People dressed their pets up for the annual block parade held near Copacabana beach. (AP Photo/Leo Correa)
A dog wears "The Flash" costume for a carnival pet parade in Rio de Janeiro, Brazil, Sunday, Jan. 31, 2016. People dressed their pets up for the annual block parade held near Copacabana beach. (AP Photo/Leo Correa)
A dog in costume walks on a leash during the carnival pet parade in Rio de Janeiro, Brazil, Sunday, Jan. 31, 2016. People dressed their pets up for the annual block parade held near Copacabana beach. (AP Photo/Leo Correa)
A dog in costume attends the carnival pet parade in Rio de Janeiro, Brazil, Sunday, Jan. 31, 2016. People dressed their pets up for the annual block parade held near Copacabana beach. (AP Photo/Leo Correa)