Bald-faced hornet viable brood in the comb fragment. The physical nature of cues mediating natal comb recognition is unknown, though some researchers propose distinct cuticular hydrocarbon profiles allow wasps to recognize nest mates. "D. maculata" is characterized by low paternity, worker reproduction and queen-worker conflict. Divergent genetic interests between workers and their queen cause intra-nest struggle for control, which disrupts social organization. Because of haplodiploidy, workers are unable to mate. However, their unfertilized eggs become males. Workers and their queens are most related to their own sons. Natural selection will therefore favor those workers who produce their own sons rather than rearing
HMS Hornet (1911) HMS Hornet (1911) HMS "Hornet" was an "Acheron"-class destroyer of the Royal Navy that served during the First World War and was sold for breaking in 1921. She was the seventh Royal Navy ship to be named "Hornet", after the insect. She was built under the 1910-11 shipbuilding programme by John Brown & Company of Clydebank, Glasgow. She (and her sister ships and ) differed from the standard Admiralty I-class destroyer in only having two shafts instead of three. They had two Brown-Curtis type steam turbines, and twin boilers. Capable of , she carried two guns, other smaller guns and