Curious about what her cat, Treacle, was doing when she brought home a bird bigger than herself, Dr. Maren Huck, an ecologist at the University of Derby, decided to strap tiny little cameras onto 16 neighborhood cats and followed them around for four years. Huck and animal behaviorist, Samantha Watson, found out some very interesting things about how cats act outside the presence of humans, particularly about their sociability and activity levels.