I found this on my patio in spain... Obviosly (i think) part of a jaw... the teeth are very very sharp... looks like a bottom part of a jaw maybe..
The jaw bone is blue, with 2 teeth sticking forward on the end, the rest out of each side, the hard casing (the other part) had a redish gungy fluid in it, although the outer casing is hard. The "jaw bone " is a blueish colour.
Total length is about 20mm..
We have a lot of birds nesting at the moment, so i though maybe it was the remains of something they had eaten?