A spider is an eight-legged arachnid that has a head attached to a central body. Pull a leg off a spider and most can still walk, even if a little lopsided. Cut off the head, and the spider dies. Not so the starfish. While many people know that if you cut off a starfish’s leg, it will grow back, most don’t know that a starfish’s major organs are replicated throughout its body. One species, Linckia, can regenerate an entire starfish from each of its severed parts. A starfish is a decentralized network. A final interesting factoid — “for the starfish to move, one of the arms must convince the other arms that it’s a good …

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