Not too uncommon; this is Arizona.

Well, the thing had two heads -- not necessarily a sign of the apocalypse, but something veterinarians at the Arizona-Sonora Desert Museum say they haven't seen in their 25 years of snake wrangling at the museum.

"It's unlikely they would have survived if left in the wild," Craig Ivanyi, the museum's associate executive director for living collections, tells AOL News. "They'd be easily picked off by a predator."

The snakes were said to be joined at the neck. Your guess is as good as ours as to where the "neck" of a snake is.