Meet the chain gang.
We don't know much about these dogs. Somehow, we don't imagine even their owners know much about them. Their only link to the world is physical. Literally, made of chain.
These images were taken at various homes in Iowa and posted to Facebook by animal rights advocate Amy Haas-Gray.
Through her organization, Hardin Eldora Animal Rescue Team (HEART), she's been fighting to break those chains for years.
It's not about Iowa.
You can probably find a dog in your own neighborhood whose existence can be measured by the links in a chain.
It's not about these dogs.
They will live and die, mostly anonymously. But their images may just inspire us to do more for the thousands of others who live and die by the chain.
HEART / Facebook