As many as 2,000 rattlesnakes spend the winter in the den that is livestreamed from Colorado. Here's how to watch.

"There's actually quite a lot of prairie rattlesnakes along the Front Range here, particularly in the foothills," Aucone said. "What I believe is probably happening at Rattlesnake Gulch is that ...

Nestled in the unforgiving Colorado mountaintops, filmmakers encountered a prairie rattlesnake with a lifesaving superpower and a breathtaking capacity for parental sacrifice. In the Colorado ...