It's almost impossible to secure yourself against a food raid from bears. That's because these giant mammals are clever tool users, and they share their tech knowledge with other bears nearby. As a result, bear-proofing technology rarely works for more than a couple of decades before every bear knows how to crack it.
The most common large predators you'll encounter outdoors in North America, bears also really, really, really want to eat your food and sometimes even you. Here's how to keep them from getting either.