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Octopus na gama gari

Octopus vulgaris

Yawancin jijiyoyinsa suna cikin hannayensa. Bita na 2021 ya sami shaida mai ƙarfi sosai cewa yana iya ji.

Jijiyoyi

miliyan 500 kiyasi · duka tsarin jijiyoyi: kusan miliyan 300 a hannaye, miliyan 200 a kwakwalwar tsakiya

Young JZ (1963) The number and sizes of nerve cells in Octopus. Proc Zool Soc Lond 140(2):229-254. doi:10.1111/j.1469-7998.1963.tb01862.x; Young JZ (1971) The Anatomy of the Nervous System of Octopus vulgaris. Oxford: Clarendon Press.

Shaida

• Bita na shaidar hali ta sani a cephalopods.
  Mather JA (2008) Cephalopod consciousness: Behavioural evidence. Conscious Cogn 17(1):37-48. doi:10.1016/j.concog.2006.11.006.

Bitar iya ji ta 2021

Amincewa cewa kowanne daga ma’aunan iya ji takwas ya cika, ga octopods:

1. mai girma sosai Dabbar tana da masu karɓa masu jin abubuwa masu cutarwa (nociceptors)
2. mai girma sosai Dabbar tana da yankunan kwakwalwa masu haɗawa da za su iya haɗa bayani daga tushen ji dabam-dabam
3. high Dabbar tana da hanyoyin jijiyoyi da ke haɗa nociceptors da yankunan kwakwalwa masu haɗawa
4. high Martanin halin dabbar ga abu mai cutarwa yana canzawa da sinadarai da suke shafar tsarin jijiyoyi (misali magungunan rage zafi na gida, analgesics, tsarin irin opioid)
5. medium Dabbar tana nuna musayar dalili, inda ake auna rashin ƙimar abu mai cutarwa ko barazana da ƙimar damar samun lada, wanda ke kaiwa ga yanke shawara mai sassauci
6. mai girma sosai Dabbar tana nuna halin kare kai mai sassauci (misali kula da rauni, tsaro, gyaran jiki, shafawa) irin wanda zai iya haɗawa da wakilta wurin da rauni ko abu mai cutarwa yake a jiki
7. mai girma sosai Dabbar tana nuna koyon haɗa abubuwa inda abubuwa masu cutarwa suke haɗuwa da abubuwa marasa tasiri, da/ko ana koyon sababbin hanyoyin guje wa abubuwa masu cutarwa ta ƙarfafawa (saba da ƙaruwar hankali ba sa ƙidayuwa)
8. high Dabbar tana nuna cewa tana daraja maganin rage zafi ko na sa barci da ake zato idan ta ji rauni (misali tana shan shi da kanta, ko tana koyon fifita wurin da yake akwai)

Sanarwar New York kan Sanin Dabbobi (2024) ta gano aƙalla yiwuwa ta gaske na ƙwarewar sani a duk dabbobi masu kashin baya da kuma a yawancin marasa kashin baya, har da cephalopods, decapod crustaceans da kwari.

Auna shi bisa ma’aunan da aka buga