Issues

Summary: Individual zebrafish select temperatures below their optimum for aerobic scope.

Summary: Estimation of bottlenose dolphin swimming effort using a physics-based energetics model shows dolphins moderate propulsive efficiency through speed and depth regulation, dependent on task effort requirements.

Summary: The present study demonstrates the role of activity dependency in maintaining or reactivating spike conduction and synaptic machineries after a long period of inactivity (>6 months) in sensory axons deprived of their nucleus.

Summary: Investigation of multivariate plasticity in response to variation in incubation temperature demonstrates that hot and cool incubation temperatures impact different types of traits, and that there appears to be little evidence that covariation among traits affects phenotypic plasticity.

Summary: A marginal temperature increase of 1.2°C under future climate change would have particularly profound effects on the physiology and ecology of larger individuals at lower latitudes.

Summary: A simple biophysical model shows that nest building and huddling represent the optimal strategies for energy savings in a cold-adapted marsupial.

Highlighted Article: In the colonial tunicate Botryllus schlosseri, both the nervous systems of zooids and the excitable vasculature contribute to generating behavior. Both tissues produce patterned output and both express voltage-dependent Na⁺ and Ca²⁺ ion channels.

Summary: Contrary to current assumptions, the flexible forked tail of fishes is not comparably more efficient and does not perform better than flat, truncate tails at cruising swimming speeds.

Summary: The adhesive capabilities of clingfish, lumpsucker and snailfish suction discs are correlated with the intensity and variability of flow regimes in the fishes' respective habitats.

Summary: Corticosterone exposure during lactation in reproducing female mice has potential beneficial effects on offspring mitochondrial function and oxidative stress in adulthood.

Summary: Cross-bridge cycling kinetics is a potential mechanism leading to the force depression but not force enhancement properties observed at steady-state following active shortening and stretching in skeletal muscle, respectively.

Summary: Tropical reef shark neonates show high manoeuvrability and short reaction times during antipredator escape responses compared with expectations based on previous work on teleost fishes and sharks.

Summary: A series of crosses identify standing genetic variation for thermal sensitivity of respiration and protein synthesis among larval families within a species, conferring physiological resilience to environmental change.