Summary: Understanding how urchins, molluscs and corals extract calcium from seawater to make their skeletons, and the factors that affect this process, improve predictions on their future success under climate change.
Summary: Preferential consumption of ethanol-containing medium can be established on base diets that elicit greater feeding, suggesting that a threshold of ethanol intake is required for developing ethanol preference.
Summary: When flying in a flight mill, flies with constrained body pitch compensate external visual perturbations applied to their retinal slip by changing their flight speed.
Membrane peroxidation index and maximum lifespan are negatively correlated in fish of the genus Nothobranchius
Summary: Phospholid content and peroxidation index of cell membranes is lower in Nothobranchius fish species with a higher maximum lifespan potential, in accordance with the longevity–homeoviscous adaptation (LHA) theory of ageing.
Whale sharks increase swimming effort while filter feeding, but appear to maintain high foraging efficiencies
Summary: Tail beat kinematics and foraging behavior of filter feeding whale sharks off the Yucatán Peninsula indicate that stroke effort increases with filter feeding, particularly at the surface.
Floral vibrations by buzz-pollinating bees achieve higher frequency, velocity and acceleration than flight and defence vibrations
Summary: Despite being produced by the same set of muscles, the vibrations bumblebees produce during buzz-pollination, defensive buzzing and flight all significantly differ in their biomechanical properties.
Role of the gut microbiome in mediating standard metabolic rate after dietary shifts in the viviparous cockroach, Diploptera punctata
Summary: Dietary shifts resulted in differential emergences of microbial taxa in the gut microbiomes of Diploptera punctata, impacting microbial essential amino acid provisioning functions that may underlie differences in determined host metabolic phenotypes, measured as standard metabolic rate.
Secondary osteon structural heterogeneity between the cranial and caudal cortices of the proximal humerus in white-tailed deer
Summary: Cortical bone mineral content has a stronger impact on tissue stiffness than cortical bone structure (Haversian system and central canal size).
Terrestrial acclimation and exercise lead to bone functional response in Polypterus senegalus pectoral fins
Highlighted Article: When amphibious fish (Polypterus senegalus) spend a prolonged time on land, their fin bones change shape and composition in response to increased mechanical loading.
Fish embryo vulnerability to combined acidification and warming coincides with a low capacity for homeostatic regulation
Summary: The gastrulation period represents a critical transition from inherited (maternal) defenses to active homeostatic regulation, which facilitates enhanced resilience of later stages to environmental factors.
Thermo-TRPs and gut microbiota are involved in thermogenesis and energy metabolism during low temperature exposure of obese mice
Summary: Thermo-TRPs and gut microbiota are involved in attenuating diet-induced obesity during low temperature exposure in C57BL/6J mice.
Responses of activity rhythms to temperature cues evolve in Drosophila populations selected for divergent timing of eclosion
Summary: Selection for divergent phasing of eclosion rhythms of Drosophila melanogaster results in altered sensitivity of activity rhythms to temperature cues, highlighting common circadian clock organisational principles.
Highlighted Article: In fish, thermal metabolic compensation in response to warming under predicted climate change scenarios may alter brain morphology and cognition, potentially causing fitness impairment.
Highlighted Article: Androgenic signalling boosts muscle twitch speed to support the production of elaborate display behaviour, triggering a trade-off with endurance. This encumbers display length, highlighting a performance cost of steroid action.
Highlighted Article: Whale sharks, the world's largest fish, can dive over 1000 m and have the advantage of maintaining relatively stable body temperatures because of their high thermal inertia.
Summary: The visual spectral sensitivity of a diurnal rodent, Rhabdomys pumilio, is biased against UV-A wavelengths thanks to lens filtering, but not cone spectral sensitivity.
Summary: Oxygen availability does not explain moderate- to long-term thermal performance in Nauphoeta cinerea, which raises further questions about the generality of the OCLTT hypothesis.