25 Common Beliefs That Are Totally Wrong

If a worm is cut in half, it will regenerate.

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Worm Regeneration The belief that cutting a worm in half creates two new worms is a popular myth, but it’s mostly false. While some worms, like planarian flatworms, can regenerate amazingly, most can’t survive such damage. Earthworms might regrow a lost tail if the cut isn’t severe, but the severed part won’t become a new worm. Planarians, however, can rebuild entire bodies from tiny pieces, making them stars in regeneration research.

This myth likely comes from mixing up different worm species and their abilities. While regeneration is incredible in some, it’s not universal. Recognizing life’s diversity helps bust this oversimplified idea.