"Worker ants deprived of the sometimes run with great speed, continue to care for the young in the , fight with aliens of their own or other species, and they may for some days behave as if unconscious of loss. A Stenamma fulvum deprived of her abdomen lived thereafter for fourteen days in one of my artificial nests, and was seen to eat. A ‘’’’ worker lived without her abdomen for five days. M. mentions ... an ant that lived nineteen days after decapitation. In experiments made by me, headless ants have continued to walk about for many days."