Skeleton key: Diverse complex networks have similar skeletons

Researchers have discovered that very different complex networks -- ranging from global air traffic to neural networks -- share very similar backbones. By stripping each network down to its essential nodes and links, they found each network possesses a skeleton and these skeletons share common features, much like vertebrates do. The findings could be particularly useful in understanding how something -- a disease, a rumor or information -- spreads across a network.

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