Studies have shown, and plenty of them, that pets of the canine variety are so good for our health, happiness and longevity that if medical science could have seen it coming, they would have found a way for doctors to prescribe dogs.

The Animal Shelter of Martha’s Vineyard’s fourth annual fundraiser added more than $10,000 to shelter coffers on Sunday, with an additional $15,000 received from shelter supporters unable to attend the event.

On the surface, not much has changed at the Animal Shelter of Martha’s Vineyard in the past few years. The unassuming building on Pennywise Path in Edgartown still draws Vineyarders old and young searching for the perfect new friend. Inside, shelves of pet care books line one side of the front office, next to a stand of colorful collars and leashes.