Bull ants are solitary foragers, hunting alone even though they live in colonies. Here, a worker Myrmecia nigriceps descends a tree trunk in a eucalypt woodland. Yandoit, Victoria, Australia
Myrmecia pilosula, the jack jumper ant, is noted for its sting. A higher percentage of people (up to 3% in some populations) are at risk of life-threatening allergic response to a jack-jumper sting than that of any other insect. Harrietville, Victoria, Australia
Myrmecia nigrceps, the black-headed bull ant. The large eyes of these insects bestow excellent vision for an ant. Yandoit, Victoria, Australia
