I had the time lapse camera described in this post set out in the rocky intertidal zone in Monterey. Late one afternoon it caught these images of a ground squirrel venturing down into the mussel zone and picking small mussels (Mytilus californianus) off the rocks and eating them. If you replay the video a few times you’ll see a couple of the mussels on the edge of the bed disappear as the squirrel pulls them off and opens them to eat the insides.