New York City, 2001
Photograph by Ira Block
The lesser known of New York's canine heroes, comfort dogs, such as this golden retriever, help soothe those affected by the terrorist attacks of September 11, 2001. Similar to search-and-rescue dogs, comfort dogs travel to disaster scenes to aid relief efforts. Studies show that people experience physiological changes—such as a drop in heart rate and blood pressure—when they pet animals.
