My parents' dog Abby will move around the room depending on where the sun is shining.
Apparently she's not the only one that does this...
YouTube Description: Sunbathing Kitty Timelapse - For around 3 hours of the day, the sun shines on our bed. That's enough to get kitty out of his blanket fort.
Yup. Just another day at the office. :)
Does your dog or cat follow the sun too?