Rhytidoponera victoriae & Amblyopone ferruginea
The worst enemies of ants are often other ants. Here, a Rhytidoponera victoriae scout (at left) has discovered a Amblyopone ferruginea worker and attempts to wrestle it back to her nest. If successful, she will kill the Amblyopone and feed her to the larvae. Amblyopone is too specialized as an underground predator to be good at general fighting, so is at a disadvantage here.
Diamond Creek, Victoria, Australia