Starfish Are Basically Bodiless Heads Crawling Around The Ocean, Scientists Say

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Starfish Are Basically Bodiless Heads Crawling Around The Ocean, Scientists Say
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We already knew that starfish were pretty weird. These strange, sea-dwelling animals seem to have rules unto themselves. They are brainless, bloodless, digest their food externally, and regenerate body parts, sometimes into wholeBut none of those are the creepiest thing about them. According to a new analysis of their gene expression, starfish and other echinoderms lack the architecture for an actual body.

But they are very different from other animals. Their body symmetry is fivefold, rather than the bilateral 'left-right' symmetry we see in most creatures.

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