...Allyn Nguyen; Kyle Leong; Natalie C. Holt The jaw muscles of the southern alligator lizard, Elgaria multicarinata, are used in prolonged mate-holding behavior, and also to catch fast prey. In both males and females, these muscles exhibit an unusual type of high endurance known as sustained force...

... processes. The current study compared energy intake, digestive passage time and energy budgets at a stable temperature (33°C) and two temperature cycles in lizards ( Sceloporus consobrinus ), to determine (1) whether stable treatments adequately project performance in a cycling environment and (2) whether...

... , B. ( 2013 ). Slow but tenacious: an analysis of running and gripping performance in chameleons . J. Exp. Biol. 216 , 1025 - 1030 . 10.1242/jeb.078618 Higham , T. E. and Jayne , B. C. ( 2004 ). In vivo muscle activity in the hindlimb of the arboreal lizard, Chamaeleo...

... proteins, which are transported and deposited at the ovary. VTG may, however, serve non-nutritive anti-oxidant functions, a hypothesis supported by empirical work on aging and other life-history transitions in several taxa. We test this hypothesis in female painted dragon lizards ( Ctenophorus pictus...

... architecture (e.g. muscle fiber length and cross-sectional area). Here, we investigate whether muscle architecture (mass, fiber length and physiological cross-sectional area), hindlimb segment dimensions, or both, explain variation in sprint speed across 14 species of Anolis lizards. Moreover, we test whether...

... is frequently activated, e.g. persistent stressors that cause injury, it may be maladaptive to suppress immune function after early-life stress. Thus, the relationship between early-life stress and immune function may vary with population-level historical stressor exposure. We collected gravid fence lizards...

..., maintenance and production. We manipulated individual investment in performance by training Anolis carolinensis lizards for endurance or sprinting ability. We then measured energetic expenditure both at rest and immediately following exercise to test whether such training alters the maintenance and production...

... of the Pachydactylus radiation of lizards (Gekkota: Gekkonidae): a phylogenetically and ecologically informed analysis . Can. J. Zool.   83 , 1511 - 1524 . 10.1139/z05-112 Karssen , J. GD. , Haberland , M. , Wisse , M. , Kim , S. ( 2011 ). The optimal swing-leg retraction rate for running...

...Philipp Comanns; Philip C. Withers; Falk J. Esser; Werner Baumgartner ABSTRACT Moisture-harvesting lizards, such as the Australian thorny devil, Moloch horridus , have the remarkable ability to inhabit arid regions. Special skin structures, comprising a micro-structured surface with capillary...

...Gary Gillis; Timothy E. Higham ABSTRACT Autotomy has evolved in many animal lineages as a means of predator escape, and involves the voluntary shedding of body parts. In vertebrates, caudal autotomy (or tail shedding) is the most common form, and it is particularly widespread in lizards. Here, we...

...Paul L. Else ABSTRACT The thermal dependence (0–40°C) of Na + flux in isolated liver cells of three endotherms (mice, rat and rabbit) was compared with that of ectotherms in the form of a thermally tolerant amphibian (cane toad), a cold-water fish (rainbow trout) and a thermophilic reptile (lizard...

... by treating individuals separately to reduce pseudoreplication, our approach resulted in high statistical power despite small sample sizes. We fitted lizard adhesive performance and bite force data to the Weibull distribution and found that it closely estimated maximum performance in both cases, illustrating...

... of Biologists Ltd 2016 Summary: During breathing, rotation of the ribs in green iguanas is nearly hinge-like, despite costal joints that permit more complex motions. Squamata Lizard Breathing Biomechanics X-ray Costovertebral joint Sternocostal joint Sternal rib Vertebral rib...

... depresses metabolic rate in blotched blue tongue lizards and limits exercise ability. Despite the developing fetuses compressing the lungs, gas diffusion ability was not altered. Ventilation Breathing pattern Oxygen consumption Gestation Lizard Reptile Pulmonary gas exchange Lung diffusion...

... to enhance subsurface performance. Using X-ray imaging, we performed the first kinematic investigation of the subsurface locomotion of the long, slender shovel-nosed snake ( Chionactis occipitalis ) and compared its biomechanics with those of the shorter, limbed sandfish lizard ( Scincus scincus...

... with sprawled postures is unknown. We measured the limb lengths of seven species of lizard and their single-limb three-dimensional ground reaction forces during high-speed running. We found that all species relied on the hindlimb for producing accelerative forces. Braking forces were forelimb dominated in four...

... lizard classically regarded as monomorphic when considering data from the visible region of the spectrum. Our results indicate a widespread presence of UV elements across the entire body of the lizards and these patterns vary significantly in intensity, size and frequency between sexes. These results...

...Anthony Herrel; Krystal A. Tolley; G. John Measey; Jessica M. da Silva; Daniel F. Potgieter; Elodie Boller; Renaud Boistel; Bieke Vanhooydonck SUMMARY Chameleons are highly specialized and mostly arboreal lizards characterized by a suite of derived characters. The grasping feet and tail are thought...

...Kathleen L. Foster; Timothy E. Higham SUMMARY The range of inclines and perch diameters in arboreal habitats poses a number of functional challenges for locomotion. To effectively overcome these challenges, arboreal lizards execute complex locomotor behaviors involving both the forelimbs...

... studied temperature and associated activity effects in male and female Australian painted dragon lizards ( Ctenophorus pictus ) by allowing the lizards to bask for 4 h versus 12 h, and scoring their associated activity (inactive versus active basking and foraging). As predicted, long-basking lizards...