منابع مشابه
Xanthomatosis in geckos: five cases.
Five cases of xanthomatosis in geckos were evaluated, one in a northern green gecko (Naultinus grayi) and the remaining four in three species of leaf-tailed geckos (two Uroplatus henkeli, one U. sikorae, one U. fimbriatus). All geckos were females 3-11 yr of age, were clinically ill on presentation, and either died or were euthanized. Necropsies showed emaciation in three geckos, with white nod...
متن کاملDynamics of geckos running vertically.
Geckos with adhesive toe pads rapidly climb even smooth vertical surfaces. We challenged geckos (Hemidactylus garnotii) to climb up a smooth vertical track that contained a force platform. Geckos climbed vertically at up to 77 cm s(-1) with a stride frequency of 15 Hz using a trotting gait. During each step, whole body fore-aft, lateral and normal forces all decreased to zero when the animal at...
متن کاملCohesion-decohesion asymmetry in geckos
Lizards and insects can strongly attach to walls and then detach applying negligible additional forces. We propose a simple mechanical model of this phenomenon which implies active muscle control. We show that the detachment force may depend not only on the properties of the adhesive units, but also on the elastic interaction among these units. By regulating the scale of such cooperative intera...
متن کاملIntegrative biology of sticky feet in geckos.
Geckos have gained ecological access to novel microhabitats by exploiting intermolecular van der Waals forces, which allow them to climb smooth vertical surfaces. They use microscopic surface-based phenomena to thrive in a macroscopic mass- and kinetic energy-based world. Here we detail this as a premier example of integrative biology, spanning seven orders of magnitude and a lot of interesting...
متن کاملTesting the phylogenetic affinities of Southeast Asia's rarest geckos: Flap-legged geckos (Luperosaurus), Flying geckos (Ptychozoon) and their relationship to the pan-Asian genus Gekko.
Some of Southeast Asia's most poorly known vertebrates include forest lizards that are rarely seen by field biologists. Arguably the most enigmatic of forest lizards from the Indo Australian archipelago are the Flap-legged geckos and the Flying geckos of the genera Luperosaurus and Ptychozoon. As new species have accumulated, several have been noted for their bizarre combination of morphologica...
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ژورنال
عنوان ژورنال: Science
سال: 2017
ISSN: 0036-8075,1095-9203
DOI: 10.1126/science.356.6341.919-a