... that potentially allow them to meet conflicting demands. Muscle contraction Contractile velocity Twitch time Contractile properties Muscle fatigue Feeding Locomotion Bite force National Science Foundation http://dx.doi.org/10.13039/100000001 IOS-2038528 Human Frontier Science...

... variation. Hence, the extent of longitudinal variation in skin properties is both species dependent and affected by feeding. The more distensible skin in macrostomates relative to the non-macrostomate species tested suggests that more compliant anterior skin is a derived trait that facilitates macrostomy...

...), and by an antidiuretic hormone RhoprCAPA-2 that terminates diuresis by inhibiting this synergy. Lateral neurosecretory cells (NSCs) in the mesothoracic ganglionic mass release RhoprCRF/DH, while midline NSCs release RhoprCAPA-2 during blood feeding. These NSCs co-express GPA2/GPB5, a conserved glycoprotein hormone...

... and that failed strikes primarily arise from incorrect timing of mouth opening, often beginning too far from the prey for suction to be effective. This likely stems from the lack of integration between locomotion and feeding systems. Our study begins to unravel the important link between behavior and success...

... for predators of diverse prey types. Loggerhead shrikes ( Lanius ludovicianus ) are medium-sized (∼50 g) passeriform birds that dispatch and feed on a variety of arthropod and vertebrate prey, primarily using their beaks. We used high-speed video of shrikes biting a force transducer in lateral view to obtain...

...Carol I. Miles; Wei Ping Chen; Shelley A. Adamo; Karen M. Kester; Dylan W. Miller ABSTRACT The parasitic wasp Cotesia congregata suppresses feeding in its host, the caterpillar Manduca sexta , during specific periods of wasp development. We examined both feeding behaviour and the neurophysiology...

...Myra F. Laird; Cláudia Misue Kanno; Caitlin B. Yoakum; Mariana Dutra Fogaça; Andrea B. Taylor; Callum F. Ross; Janine Chalk-Wilayto; Megan A. Holmes; Claire E. Terhune; José Américo de Oliveira ABSTRACT Bite force and gape are two important performance metrics of the feeding system...

... found that this decision is strongly affected by the crab's feeding state and sex. Adult male and female crabs, Neohelice granulata (Dana 1851), were collected from narrow coastal inlets of San Clemente del Tuyú, Argentina. Females and males included in this study had similar carapace widths...

... declare no competing or financial interests. © 2023. Published by The Company of Biologists Ltd 2023 Summary: Comparisons of biomechanical performance for species of amphidromous goby fishes during feeding, adhesion, fast-start escapes and waterfall climbing across environmental, ontogenetic...

...Arie van der Meijden; Julio César González-Gómez; María D. Pulido-Osorio; Anthony Herrel ABSTRACT Bite force is a key performance trait of the feeding system, but maximal in vivo bite force has been measured in few large mammals. The alternative, modelling of bite force from anatomy, cannot...

... by loss of body mass and major metabolic changes. Following release of fry, females resume normal feeding behavior and quickly recover body mass as they become reproductively active once again. In order to investigate the molecular underpinnings of such dramatic behavioral and metabolic changes, we...

...Amanda M. Herbert; Mason N. Dean; Adam P. Summers; Cheryl D. Wilga ABSTRACT Elasmobranch fishes (sharks, skates and rays) consume prey of a variety of sizes and properties, and the feeding mechanism typically reflects diet. Spotted ratfish, Hydrolagus colliei (Holocephali, sister group...

... songbirds move their beak during the different phases of seed processing. In this study, we used multi-view high-speed imaging to analyze the 3D movement of the beak in feeding domestic canaries. Our analysis focused on the correlation of the upper and lower beak, the frequency of mandibulation...

... of marine mammals that evolved from terrestrial carnivorans in the Oligocene (∼27 million years ago). However, pinnipeds have secondarily lost the dental innovations emblematic of mammalian and carnivoran feeding, such as a talonid basin or shearing carnassials. Modern pinnipeds do not masticate their prey...

... feeding. However, little is known about the endocrine and immune modulation in the postprandial period of ectothermic animals. This study investigated the effects of feeding on endocrine and immune responses in the bullfrog ( Lithobates catesbeianus ). Frogs were fasted for 10 days and divided into two...

... powering feeding functions during swallowing. * Author for correspondence ( [email protected] ) Competing interests The authors declare no competing or financial interests. 24 6 2021 6 10 2021 © 2021. Published by The Company of Biologists Ltd 2021 Summary: Hyoid...

... species, despite lower strain gradients in V. niloticus . In S. merianae , the postorbital bar is important for resistance of the cranium to feeding loads. The postorbital ligament, which in varanids partially replaces the postorbital bar, does not affect bone strain. Our results suggest...

... ostrinus (the African seedcracker finch) shows an intraspecific polymorphism in beak size and shape that is entirely diet driven and allelically determined. Three distinct morphs feed upon soft sedge seeds during times of abundance, but during lean times switch to specializing on three different species...

... a mechanistic explanation for particle selection process in suspension-feeding bivalves. Bivalve Mucus Proteomic Mass spectrometry Feeding Particle selection Living organisms are unceasingly exposed to challenging physical, chemical and biological factors, so that their fitness, and often...

.... Published by The Company of Biologists Ltd 2021 Summary: Mechanical processes that replace chemical processes in organismal movement can result in performance that is robust to changing temperature. Thermal sensitivity Performance Movement Locomotion Feeding Temperature Muscle...