The skull

For those who try to avoid the somewhat macabre, please look away. We found this little skull on our mid-day walk the other day. It was in a scattering of bones down by the sea shore. A bedraggled clump of fur (rabbit?) appeared to be wedged between the creatures's teeth. I've been trying to identify it. It measures 10cm x 7cm across and has the teeth of a carnivore. Otter? Cat? Pine marten? These are the only possibilities, I think. Any ideas?