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If an arm of a starfish is separated from its body, how the arm grows again?
Sea stars are famous for their ability to regenerate limbs, and in some cases, entire bodies. They accomplish this by housing most or all of their vital organs in their arms. Some require the central body to be intact to regenerate, but a few species can grow an entirely new sea star just from a portion of a severed limb.
Starfish, also known as sea stars, (they are not fish) are capable of regenerating even one arm into a whole new body. This is only possible if the arm includes part of the central disc.
As long as a piece has part of the central disk, it should regenerate into a whole organism.


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