The boar is currently the only animal with a circular footprint, which is odd, because it has four legs and is clearly longer than it's wide; this patch changes it to a 2:1 oblong footprint, similar to the other mammals.
The hippopotamus was introduced recently (rP23603), subsequently the template was adjusted (rP23604), and afterwards the actor was scaled up (rP23605), which means it now needs a larger footprint; this patch does that.