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Marquis then pondered how it is that cities come to be | |
"The wax allows for a very flexible building material," says Christina Grozinger, an entomologist at Penn State University, who studies mechanisms underlying bee social behaviour and health. When forming a honeycomb, honey bees mould wax into hexagons, which turns out to be the most efficient shape to store something, since hexagons pack tightly together. "It"s an engineering feat," Grozinger says. | |
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