This was the first GIF I ever made.
When I was working on my dissertation on bovid ecomorphology, I was having trouble visualizing the way in which rotation occured, first at the trasverse tarsal joint, and then at the upper ankle joint. So I pulled out my trusty Ammotragus lervia leg skeleton and started snapping photos. Then I cobbled it together into an animated GIF and voila, I had a much clearer picture of what was going on! I wish I have been a bit more consisten with the lighting though…….