3 to 4 inches long Wholesale Jackrabbit Skulls for Sale, Jack Rabbit skulls, may have a few missing teeth,  (mouth glued shut - hot melt glue is on the teeth),  These wholesale jackrabbit skulls, or jack rabbit skulls, have been cleaned (but NOT whitened and will have golden colored skulls) and are ready for display. Jackrabbits are actually hares, not rabbits. Hares are larger than rabbits, and they typically have taller hind legs and longer ears. Jackrabbits were named for their ears, which initially caused some people to refer to them as "jackass rabbits."