In my photos, you will see bear and moose in the same locations, although not at the same time. Only one case has ever been documented of a black bear preying on an adult moose. A black bear in Ontario, Canada came upon a cow moose in her day bed and lept onto her back. Despite the cow's desperate attempts to free itself by crashing into trees, the bear did bring the moose down. Biologists were able to determine that the moose had been in good health prior to the attack.