... two distinct methods of advance and attack are exercised forthwith in the midst of what appears to be calamitous confusion. Swarming on the extremity of the branches among which the formicary is constructed, the defenders, projecting their terminal segments as far into space as possible, eject formic acid in the direction of the enemy. Like shrapnel from machine guns, the liquid missile sweeps a considerable area. Against the sunlight it appears as a continuous spray, and should one infinitesimal drop descend into the eye the stoutest ... — Tropic Days • E. J. Banfield
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