We outfitted squirrels with small motion sensing collars that collected data as squirrels moved through their environment. These collars used accelerometers, magnetometers, and gyroscopes to measure different aspects of a squirrel's motion. These sensors are similar to the ones in our cell phones and smart watches that help us measure how far and fast we have traveled or flip the orientation of our screens when we turn our phone from vertical to horizontal. Here is Diva the California ground squirrel modeling her collar for |