2020
DOI: 10.1098/rsif.2019.0700
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Sea star inspired crawling and bouncing

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 mechanicall… Show more

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Cited by 18 publications
(14 citation statements)
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“…Examples of bioinspired aquatic robots include robotic fish [16][17][18], manta rays [19][20][21], sea stars [22,23], and jellyfish [24][25][26][27][28][29], including systems that have been deployed in real-world environments [16,24].…”
Section: Introductionmentioning
confidence: 99%
“…Examples of bioinspired aquatic robots include robotic fish [16][17][18], manta rays [19][20][21], sea stars [22,23], and jellyfish [24][25][26][27][28][29], including systems that have been deployed in real-world environments [16,24].…”
Section: Introductionmentioning
confidence: 99%
“…The ambulacrals in these ophiuroids tend to be separated proximodistally and, in some cases, tightly juxtaposed across the midline of the arm (in our specimens of E. roemeri, L. mirabilis). The closest living relatives of ophiuroids (Asteroidea, Echinoidea) use podial walking for locomotion [2][3][4] and the musculoskeletally-driven locomotion strategy of extant ophiuroids is derived. This suggests that the unique locomotion strategy used by modern ophiuroids evolved after their most recent common ancestor with other modern taxa.…”
Section: Inferring Locomotion Strategies In Fossil Asterozoansmentioning
confidence: 99%
“…The integrated body structure of an organism and the morphology of its components determine the locomotion strategies available to it [ 1 ]. The majority of living ophiuroids employ a unique strategy involving the coordination of whip-like motions of their five muscular arms, in contrast to their closest living relatives including the sea stars and sea urchins [ 2 4 ], which primarily use tube feet and move more slowly. Reconstructing the evolutionary history of ophiuroid locomotion is challenging as the morphology of the arms of many fossil ophiuroids differs from that in living forms, from the basic structure and number of elements to their arrangement and integration.…”
Section: Introductionmentioning
confidence: 99%
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“…Bioinspired soft robots can potentially address issues in power consumption [ 13 , 15 ] and leave wakes that mimic the wakes of marine life, with potential to minimally perturb surrounding wildlife. Examples of bioinspired aquatic robots include robotic fish [ 16 , 17 , 18 ], manta rays [ 19 , 20 , 21 ], sea stars [ 22 , 23 ], and jellyfish [ 24 , 25 , 26 , 27 , 28 , 29 ], including systems that have been deployed in real-world environments [ 16 , 24 ].…”
Section: Introductionmentioning
confidence: 99%