The octopus is an interesting model for the development of soft robotics, due to its high deformability, dexterity and rich behavioural repertoire. To investigate the principles of octopus dexterity, we designed an eight-arm soft robot and evaluated its performance with focused experiments. The OCTOPUS robot presented here is a completely soft robot, which integrates eight arms extending in rad...

The electrophoretic analysis of egg yolk proteins of the mollusc Octopus vulgaris by both SDSand nativePAGE, showed two different patterns that mirror the two main periods characterizing the reproductive cycle of the female of Octopus vulgaris: the non-vitellogenic period (October-February) and the vitellogenic period (March-July). Since different levels of progesterone also characterize these ...

An octopus can be a canny customer – by shortening, bending, elongating and twisting its highly dexterous arms it can catch prey, build a shelter and even open jars. The dazzling array of delicate tasks that they can perform is well documented, but how exactly do they do it? Yoram Yekutieli and colleagues at the Hebrew University and Wiezmann Institute of Science in Israel built a series of oct...

Digestive physiology is one of the bottlenecks of octopus aquaculture. Although, there are successful experimentally formulated feeds, knowledge of the digestive physiology of cephalopods is fragmented, and focused mainly on Octopus vulgaris. Considering that the digestive physiology could vary in tropical and sub-tropical species through temperature modulations of the digestive dynamics and nu...

How an octopus performs complex movements of its eight sucker-studded arms without entanglement has been a mystery. A new study has found that self-recognition of the octopus's skin by its suckers inhibits reflexive grasping of its own arms, simplifying the mechanisms needed to generate intricate arm behavior.

The authors report neuromuscular manifestations in a 45-year-old woman after consuming octopus meat (Octopus sp.). The patient presented malaise, paresthesias in perioral and extremity areas, intense muscular weakness and arterial hypotension, followed by severe itch and disseminated cutaneous rash. Gastrointestinal manifestations and fever were not observed, reducing the probability of aliment...

In this demonstration, we present Octopus, an interactive dashboard and visualization tool for Wireless Sensor Networks. Octopus helps developers with network debugging, network assessment, and gaining an understanding of network topology and routing patterns. For the final users, it provides a user-friendly tool to localize nodes, formulate application queries and tune parameters according to ...

This paper explores the use of Octopus in Hong Kong (HK). There are over 7.4 million cards sold and 7 million of these are active. The study examines how transport and other sectors can enhance their services through Octopus. Six of the 40 organisations using the Hong Kong Octopus card were interviewed. A convenience sample of 800 actual and potential Octopus customers was sent a questionnaire....