Amodio Piero, Josef Noam, Shashar Nadav, Fiorito Graziano
Department of Biology and Evolution of Marine Organisms Stazione Zoologica Anton Dohrn Napoli Italy.
Department of Life Sciences Ben-Gurion University Eilat Israel.
Ecol Evol. 2021 Mar 5;11(9):3679-3684. doi: 10.1002/ece3.7328. eCollection 2021 May.
Lacking an external shell and a rigid endoskeleton, octopuses exhibit a remarkable flexibility in their movements. Bipedal locomotion is perhaps the most iconic example in this regard. Until recently, this peculiar mode of locomotion had been observed only in two species of tropical octopuses: and . Yet, recent evidence indicates that bipedal walking is also part of the behavioral repertoire of the common octopus, . Here we report a further observation of a defense behavior that encompasses both postural and locomotory elements of bipedal locomotion in this cephalopod. By highlighting differences and similarities with the other recently published report, we provide preliminary considerations with regard to bipedal locomotion in the common octopus.
由于没有外壳和坚硬的内骨骼，章鱼在运动方面表现出了非凡的灵活性。双足运动可能是这方面最具代表性的例子。直到最近，这种奇特的运动方式仅在两种热带章鱼中被观察到： 和 。然而，最近的证据表明，双足行走也是普通章鱼（ ）行为模式的一部分。在此，我们报告了对一种防御行为的进一步观察，该行为包含了这种头足类动物双足运动的姿势和运动元素。通过强调与其他最近发表的报告的异同，我们对普通章鱼的双足运动提供了初步的思考。
