In what can only be described as one of the most jaw-dropping zoo incidents recently, a wild red fox broke into the National Zoo in Washington, D.C., and killed 25 flamingos in a single night. Yes, ...

Active mostly at night, Sierra Nevada red foxes spend winters in dens in ... other native foxes by their black-backed ears and white-tipped tails. Sierra Nevada red fox. Photo courtesy USDA. Image is ...