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of flies emerges.Fruit flies (at least two Drosophila species) feature strongly, which is no surprise given the amount of apple cores, banana skins, melon shells and potato peelings we chuck in each week. Although the adult flies are only 2.5mm long

a known and fruitful nectar and pollen source, synchronized for their advantage.A visible manifestation of this behaviour is the bright colour of the pollen cake, carried on the special long hairs of the bees' back legs. It is not the dull dark grey

females) no longer have a burgeoning brood of nest mate grubs to rear in the brood combs. Since it was the grubs that needed the chewed insect protein, the listless workers are now left to forage for themselves, at flowers, fallen fruit and jam sandwiches