Why do starfish have the ability to regrow arms?
Quick Answer
Many starfish can regenerate lost arms because their tissues contain cells that can rebuild body parts. In some species, a single detached arm can even regenerate an entire body if part of the central disc remains attached.
The Full Story
Starfish regeneration is possible because of their remarkable ability to reprogram cells and rebuild tissues after injury. If a starfish loses one or more arms, it can often grow them back over time. In some species, if a detached arm includes part of the central disc, it may regenerate a whole new individual. This ability is useful because starfish are vulnerable to predation and breakage, especially in rough habitats. Their regeneration has made them important models for studying tissue repair and body patterning in biology.
Key Facts
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"The sea creature that can rebuild itself from a fragment"
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