Camponotus aethiops won the battle..

A Camponotus aethiops ant had been in a fight with another of ant of what looks like the same species but probably from a different colony. It looks like the now dead ant clamped onto the other ant's antenna and at this point, it looks like the ant in the picture sliced off it's head! I was quite surprised to see it firmly attached still as I thought that the dead ant would have released it's grip. Seems these ants share some similar traits to "Trapjaw" ants that keep their jaws firmly clamped even when they have been killed. As a side note - trap jaw ant species can be used as makeshift stitches if you have a cut.