Living with Wildlife Foundation tested the 120L and 240L bear resistant carts and concluded that they are able withstand 60 minutes of biting, clawing, rolling, and crushing by a captive grizzly bear at the Grizzly & Wolf Discovery Center in West Yellowstone, Montana.
The testing program utilizes captive grizzly bears housed at the Grizzly & Wolf Discovery Center in West Yellowstone, Montana to determine the relative "bear-resistancy" of the containers. Testing consists of baiting containers with foods that are new and interesting to the captive test bears and then giving the bears an opportunity to gain access the containers' contents. The bears roll, crush, bite, and claw the containers and use their claws and teeth to try to compromise latches, hinges, handles, and seams.
The bears that test these products learn new techniques for accessing the containers over time and teach the other resident bears new techniques. The testing process is therefore very rigorous. Manufacturers are learning that in order for their products to perform well during product testing, they must make additional modifications to their products - especially to the latches and handles - to prevent the bears from gaining access. This in turn leads to a gradual overall improvement in bear-resistant products entering the marketplace.