Octopuses can regrow fully functional arms
Octopuses can completely regrow lost arms, restoring full sensory and motor capabilities, a remarkable biological feat that aids their survival and inspires medical research.
Octopuses possess an extraordinary ability to regenerate lost arms, restoring them with complete functionality. If an arm is lost due to injury or predation, a new one can fully regrow over several weeks to months, depending on the species. This new limb develops from a blastema, a mass of undifferentiated cells, eventually forming all original structures like suckers, nerves, and muscles.
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