 The researchers saw that each patriline had a significantly skewed proclivity for a certain caste, showing that there is considerable evidence for a genetic based caste determination amongst each patriline.These genetic components have been shown not only in "Eciton burchellii", but across numerous other ant species—where queens mate with many males, known as polyandry, or where several queens lead a single colony, known as polygyny.Unlike other Hymenoptera species, ants cannot actively thermoregulate through processes such as evaporation, fanning, or incubation.