ArticleJournal of the Royal Society, Interface2020
Sea star inspired crawling and bouncing.
Article in Journal of the Royal Society, Interface, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed.
- Nonreciprocal buckling makes active filaments polyfunctional.Proceedings of the National Academy of Sciences of the United States of America · 2026Article
- Tube feet dynamics drive adaptation in sea star locomotion.Proceedings of the National Academy of Sciences of the United States of America · 2026Article
- The Design of a Bioinspired Integrated Total Habitability Instrument for Planetary Exploration: A Review of Potential Sensing Technologies.Biomimetics (Basel, Switzerland) · 2025Review
- Starfish-inspired tube feet for temporary and switchable underwater adhesion and transportation.Science advances · 2025Article
- The directional control of phototaxis in sea stars (Protoreaster nodosus).The Journal of experimental biology · 2025Article
- Soft skeletons transmit force with variable gearing.The Journal of experimental biology · 2024Article
- Gecko adhesion based sea star crawler robot.Frontiers in robotics and AI · 2023Article
- 3D Reticulated Actuator Inspired by Plant Up-Righting Movement Through a Cortical Fiber Network.Biomimetics (Basel, Switzerland) · 2021Article
- Three-dimensional visualization as a tool for interpreting locomotion strategies in ophiuroids from the Devonian Hunsrück Slate.Royal Society open science · 2020Article
- Field Testing of Biohybrid Robotic Jellyfish to Demonstrate Enhanced Swimming Speeds.Biomimetics (Basel, Switzerland) · 2020Article
Corrections and comments
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The oral surface of sea stars is lined with arrays of tube feet that enable them to achieve highly controlled locomotion on various terrains. The activity of the tube feet is orchestrated by a nervous system that is distributed throughout the body without a central brain. How such a distributed nervous system produces a coordinated locomotion is yet to be understood. We develop mathematical models of the biomechanics of the tube feet and the sea star body. In the model, the feet are coupled mechanically through their structural connection to a rigid body. We formulate hierarchical control laws that capture salient features of the sea star nervous system. Namely, at the tube foot level, the power and recovery strokes follow a state-dependent feedback controller. At the system level, a directionality command is communicated through the nervous system to all tube feet. We study the locomotion gaits afforded by this hierarchical control model. We find that these minimally coupled tube feet coordinate to generate robust forward locomotion, reminiscent of the crawling motion of sea stars, on various terrains and for heterogeneous tube feet parameters and initial conditions. Our model also predicts a transition from crawling to bouncing consistently with recent experiments. We conclude by commenting on the implications of these findings for understanding the neuromechanics of sea stars and their potential application to autonomous robotic systems.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.