Ants!
(kinda)

Technically, speaking these are not ants, but spiders (count the legs and eyes) that have evolved to look like Ants. Nature is amazing!



Although many of these spiders hunt ants, it is not this visual deception that facilitates their hunting. It appears that the visual mimicry protects them from predation by other predators that generally avoid ants because they produce formic acid. The spider's mimicry of ants is not just visual, but chemical as well. The integrity of social insect colonies is maintained by members utilizing chemical cues present on the cuticle of nest mates and any intruder. Some of these mimicking spiders use chemical mimicry to gain access to these nests, which can be acquired through biosynthesis or through contact with the hosts or their nest material. For example, This paper shows that the chemical resemblance of the spider does not arise through physical contact with the adult ants, but instead the spider acquires the cuticular hydrocarbons by eating the ant larvae. You are what you eat.