Rattlesnakes have long been persecuted, even killed for sport or having their entire dens burned. I head out with two wildlife biologists to look for rattlesnakes as they emerge from hibernation and learn about the important role these snakes play in our ecosystem.
20 years ago, foxes on Santa Cruz started dying at an alarming rate. Their numbers dropped to around one hundred animals. But nobody knew why. It was an ecological whodunnit that needed to be solved before the foxes disappeared forever.