With their ability to communicate among themselves and solve complex problems, ants are an object of endless fascination. Among the more than 30 species photographed by Eduard Florin Niga are leafcutters that grow fungus for food, trap-jaw ants with fearsome mandibles, bullet ants with potent stingers. Among his most memorable images are portraits—including queens, workers, soldiers, and rarely seen males—that help us better understand these creatures whose societies are eerily like our own.