In some ants, bees, and wasps, workers kill or ‘‘police’’ male eggs laid by other workers in order to maintain the reproductive primacy of the queen. Kin selection theory predicts that multiple mating by the queen is one factor that can selectively favor worker policing. This is because when the queen is mated to multiple males, workers are more closely related to the queen’s sons than to the s...

Wingless males of the ant genus Cardiocondyla engage in fatal fighting for access to female sexual nestmates. Older, heavily sclerotized males are usually capable of eliminating all younger rivals, whose cuticle is still soft. In Cardiocondyla sp. A, this type of local mate competition (LMC) has turned the standard pattern of brood production of social insects upside down, in that mother queens...

Stephen M. Fleming, Louise Whiteley, Oliver J. Hulme, Maneesh Sahani, Raymond J. 3 Dolan 4 5 Wellcome Trust Centre for Neuroimaging, University College London, 12 Queen Square, 6 London WC1N 3BG 7 Gatsby Computational Neuroscience Unit, University College London, 17 Queen Square, 8 London WC1N 3AR 9 Laboratory of Neurobiology, UCL Institute of Ophthalmology, Bath Street, EC1V 9EL 10 Corresponde...

The effects of sublethal pesticide exposure on queen emergence and virus titers were examined. Queen rearing colonies were fed pollen with chlorpyrifos (CPF) alone (pollen-1) and with CPF and the fungicide Pristine(®) (pollen-2). Fewer queens emerged when larvae from open foraging (i.e., outside) colonies were reared in colonies fed pollen-1 or 2 compared with when those larvae were reared in o...

The Crematogaster subgenus Colobocrema was established to include the single species C. cylindriceps Wheeler, based on a single queen from the Philippines. We discovered a species close to or the same as C. cylindriceps in Borneo and provide descriptions of the queen, worker and male. This species lives in live climber plants of secondary and primary rainforests. The phragmotic morphology chara...

are secreted by queen brood at half the rate found for worker brood. Methyl oleate, repellent to the mite, is secreted in large amounts compared with the attractive esters. Quantitative and qualitative differences in the esters present on worker, drone, and queen broods could partially explain the weaker attraction exerted by queen brood on the mite, compared with the attractive effects of work...

Were it not for the antiphospholipid antibody syndrome, the United States might now have a National Health Service. That’s my conclusion from finding direct links between the most prominent victim of the syndrome—Queen Anne—and current debates over Scotland’s imminent secession from England. This September, Scots will hold a plebiscite on whether to dissolve a partnership that has lasted since ...