Octopus intelligence may be related to never-before-seen mutation
A popular-science article linking a newly discovered octopus ribosomal RNA mutation to their intelligence prompts scrutiny of how far current evidence actually supports that claim. Commenters contrast the speculative framing of science journalism with the more cautious language of primary research, stressing the lack of demonstrated causal or even clear correlational ties between the mutation and cognition. The thread widens into reflections on octopus neurobiology, distributed consciousness, and the ethics of eating intelligent or sentient animals, including comparisons with pigs, cows, and broader arguments about vegetarian and vegan diets.
Article framing and evidence for intelligence link
- Some see the Smithsonian piece as “shameless clickbait” because it concedes there is no direct evidence connecting the rRNA mutation to octopus intelligence.
- Others argue pop-sci outlets are allowed to speculate more and “excite curiosity,” as long as they acknowledge uncertainties.
- Several readers note the core study (higher translation accuracy via rRNA break) is interesting on its own, but the intelligence angle feels overextended or only weakly justified.
Octopus nervous system and consciousness
- Many were surprised to learn octopus neural tissue is distributed: one central brain plus large neuron clusters in the arms.
- Discussion about what octopus consciousness could be like:
- Possibilities raised: centralized self with semi-autonomous “zombie” arms vs multiple partially independent experiences.
- Comparisons to human distributed processing: spinal reflexes, autonomic functions (heart, gut, breathing), and learning in sensory organs.
- Analogies drawn to conjoined twins with two brains in one body and to the human gut–brain axis.
Intelligence, morphology, and environment
- One view: fine motor control and many degrees of freedom (arms/tentacles, human hands) may drive selection for intelligence.
- Others push back:
- Snakes and squid have many degrees of freedom but are not as cognitively complex as octopuses.
- Shallow, complex habitats (reefs, competition, predator–prey dynamics) are suggested as a more plausible driver of large nervous systems and advanced behavior.
Ethics of eating octopus and other animals
- Several commenters say knowing octopuses’ intelligence made them stop eating them; others continue because they find them delicious.
- Broader debate emerges:
- Some argue all meat (and dairy) is ethically questionable, with factory farming and calf separation for milk highlighted as especially problematic.
- Others emphasize practicality, nutrition, cost, and cultural context, claiming fully plant-based diets require careful planning and resources.
- Discussion includes comparisons with pigs and cows, hunting vs farming, and whether “a good life then humane death” could be ethically acceptable.
- Plant-based meat alternatives and vegan pet diets are debated for healthfulness and ethics, with conflicting claims about evidence.