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Genetic variations accumulating within populations over generations give rise to biological evolution. Evolutionary changes can result in the formation of novel varieties and entire new species. These changes are responsible for the diverse forms of life inhabiting the planet. The evidence for evolution suggests that all living organisms descended from common ancestors.
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Related Experiment Video

Updated: Feb 6, 2026

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Octopus vulgaris: An Alternative in Evolution.

Anna Di Cosmo1, Valeria Maselli2, Gianluca Polese2

  • 1Department of Biology, University of Napoli Federico II, Napoli, Italy. dicosmo@unina.it.

Results and Problems in Cell Differentiation
|August 8, 2018
PubMed
Summary

Octopuses evolved unique traits for a benthic lifestyle, including complex nervous systems and advanced senses. These adaptations, like gene editing and brain rejuvenation, enable remarkable environmental adaptability.

Keywords:
Adult neurogenesisChemoreceptionEvolutionOctopus vulgarisRNA editing

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Area of Science:

  • Marine Biology
  • Evolutionary Biology
  • Neuroscience

Background:

  • Octopus vulgaris exhibits significant divergence from other cephalopods due to adaptation to a benthic lifestyle.
  • This species independently evolved the most complex nervous system and sophisticated behaviors among invertebrates.
  • Unique traits include highly mobile arms, advanced eyes, chemoreceptors, and olfactory organs.

Purpose of the Study:

  • To provide an overview of the evolutionary innovations of Octopus vulgaris.
  • To highlight adaptations contributing to the octopus's evolutionary success.
  • To explore unique traits such as advanced sensory perception and neural plasticity.

Main Methods:

  • Review of existing literature on Octopus vulgaris evolution and biology.
  • Analysis of anatomical, behavioral, and neurological adaptations.
  • Synthesis of findings on sensory systems, arm function, and neural mechanisms.

Main Results:

  • Octopuses possess a complex nervous system, advanced visual and chemosensory capabilities, and unique arm motility.
  • The species demonstrates remarkable evolutionary success through specialized adaptations.
  • Recent discoveries include adult neurogenesis and high levels of RNA editing, enhancing environmental adaptability.

Conclusions:

  • Octopus vulgaris showcases extraordinary evolutionary inventions, including color vision, tactile olfaction, gene editing, and brain rejuvenation.
  • These adaptations are key to the octopus's ability to navigate and thrive in diverse environmental challenges.
  • The study underscores the octopus as a model for understanding invertebrate intelligence and evolutionary resilience.