Early in the morning, while it was still dark, the homeowner heard her dog crying outside, as if something had happened. She quickly rushed out, brought her dog inside, and noticed some swelling on its face. Concerned, she took the dog to the vet, who confirmed it had been bitten by a rattlesnake. A few hours later, she called us to check the yard. When Marissa arrived, she saw the snake moving along the side of the fence in the backyard. The home was surrounded by desert and was located right beside a wash. The dog was still at the vet when I got there. This incident took place in Scottsdale.