Fox News’ Kayleigh McEnany called it "a hellish red background," while others couldn't believe the images circulating on social media were real. "I can’t believe this is a real photograph.

A Northern California photographer captured footage of an extremely rare fox in Lassen Volcanic National Park this winter. The Sierra Nevada red foxes are “one of the rarest mammals in the world ...

The fox’s surviving populations are critically small. The population found in the Lassen area, for example, was recently estimated to contain fewer than 10 breeding adults. The other populations ...