Hundreds of tightly packed zinc-roofed shacks dot a hillside slum, one of thousands of “favelas” that are home to samba stars, drug lords and millions of poor Brazilians. But this slum in the southern city of Caxias do Sul is a home for dogs, not humans.

Without enough money to build a proper shelter for 1,600 abandoned pooches, the humane organization So Ama, or “Just Love,” keeps the animals chained to an array of about 1,000 small dog houses that look like the Brazilian slums made famous by movies such as “City of God.”

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