Environmental interaction influences muscle activation strategy during sand-swimming in the sandfish lizard Scincus scincus
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Environmental interaction influences muscle activation strategy during sand-swimming in the sandfish lizard Scincus scincus.
Animals like the sandfish lizard (Scincus scincus) that live in desert sand locomote on and within a granular medium whose resistance to intrusion is dominated by frictional forces. Recent kinematic studies revealed that the sandfish utilizes a wave of body undulation during swimming. Models predict that a particular combination of wave amplitude and wavelength yields maximum speed for a given ...
متن کاملAdaptation to life in aeolian sand: how the sandfish lizard, Scincus scincus, prevents sand particles from entering its lungs
The sandfish lizard, Scincus scincus (Squamata: Scincidae), spends nearly its whole life in aeolian sand and only comes to the surface for foraging, defecating and mating. It is not yet understood how the animal can respire without sand particles entering its respiratory organs when buried under thick layers of sand. In this work, we integrated biological studies, computational calculations and...
متن کاملUndulatory swimming in sand: subsurface locomotion of the sandfish lizard.
The desert-dwelling sandfish (Scincus scincus) moves within dry sand, a material that displays solid and fluidlike behavior. High-speed x-ray imaging shows that below the surface, the lizard no longer uses limbs for propulsion but generates thrust to overcome drag by propagating an undulatory traveling wave down the body. Although viscous hydrodynamics can predict swimming speed in fluids such ...
متن کاملLocomotion of the Sandfish Lizard Undulatory Swimming in Sand : Subsurface
www.sciencemag.org (this information is current as of July 17, 2009 ): The following resources related to this article are available online at http://www.sciencemag.org/cgi/content/full/325/5938/314 version of this article at: including high-resolution figures, can be found in the online Updated information and services, http://www.sciencemag.org/cgi/content/full/325/5938/314/DC1 can be found a...
متن کاملMorphological and Molecular Studies of Ophiotaenia Sp. (Cestoda: Proteocephalidea) a Parasite of the Sandfish Lizard Scincus scincus Linnaeus, 1758 (Family: Scincidae)
Ophiotaenia sp. n. (Proteocephalidae: Proteocephalinae) is collected from the intestine of Scincus scincus Linnaeus, 1758 (Family: Scincidae) lizards from Sinai, Egypt. This species is rare with both prevalence and intensity low. The medullary position of the vitellaria and reproductive organs, the uniloculate suckers and the two separate fields of testes placed it in the genus Ophiotaenia La R...
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ژورنال
عنوان ژورنال: Journal of Experimental Biology
سال: 2013
ISSN: 1477-9145,0022-0949
DOI: 10.1242/jeb.070482