From a greater distance and if they are not moving grizzly bears tend to blend in with the rocks on the beach. Both bears seem to have found something worthy of their full attention but that is what happens when mother turns over a rock. This inter-tidal zone “food” is high in protein and is made up of crab, clams, barnacles, amphipods and other tiny invertebrates. The “beach food” is important because plant food is relatively scarce during spring and bears will continue to loose weight until well into June.