Stepping outside and finding an unfamiliar animal collapsed in your yard is not something anyone anticipates, especially when the creature looks so frail it is hard to even recognize what you are seeing.
That was the unsettling moment Sharon Betrozzi faced in Folsom, California, when she spotted what seemed to be an elderly, weakened dog curled tightly beneath her porch.
The morning air was sharply cold, and the animal lay pressed against the concrete, barely moving, its breathing shallow and strained…