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Summary: Eurythermal teleosts suppress mitochondrial respiration through NADH dehydrogenase (complex I) with no detectable loss of function during acute temperature shifts.

Summary: Eider ducks are able to exceed their hull speed through the use of two kinematically distinct aquatic surface burst locomotive behaviors.

Highlighted Article: paternal embryo oxygenation improves with male size in pipefish but the notion of syngnathid closed brood pouches as well-oxygenated structures promoting the evolution of larger eggs is rejected.

Summary: Increased vocal effort by bottlenose dolphins has metabolic costs at the individual level, indicating energetic consequences for wild populations of marine mammals communicating in noise-polluted environments.

Summary: Moths propel jumping by rapid movements of the middle and hind legs with or without wing movements in three distinct strategies.

Summary: Inducing short-day-like seasonal body mass loss in hamsters housed in a long-day photoperiod attenuates energetically expensive sickness symptoms, such that they correspond with natural seasonal variation in sickness intensity.

Highlighted Article: Larval but not pupal Bombyx mori are oxygen limited, with hypoxia significantly decreasing CTmax, suggesting that oxygen safety margins set thermal limits in air-breathing invertebrates.

Summary: Acute fight-or-flight stress responses to experimental stressors are modulated according to breeding advancement in the king penguin.

Summary:Symsagittifera roscoffensis lives in a photoautotroph symbiosis with the green algae Tetraselmis convolutae. The two partners have different preferences in light exposure.

Summary: Snails engage in the concept of ‘necessity knows no law’ as memories not to respond to a food substance are overpowered by hunger.

Highlighted Article: Heat tolerance varies with body size in African weavers in the Kalahari Desert.

Summary: The juvenile hormone analogue methoprene accelerates the onset of foraging behaviour in worker honey bees (Apis mellifera) but also reduces forager performance and longevity, indicating a limitation to the plasticity of bees.

Summary: Freely flying butterflies use motion cues to estimate the proximity of targets.

Summary: Differences in exploration behavior exist between male and female frogs, with males exploring novel environments more than females; this behavior is decoupled from performance in both sexes.

Summary: Disruption of amylase gene expression reduces absorption efficiency and constrains reproduction in oysters; the reduction in energy intake is insufficient to affect reproduction, suggesting that dsRNA causes disturbances that increase maintenance costs.

Highlighted Article: During swimming in Xenopus tadpoles, a locomotor corollary discharge is transmitted to the trigeminal nucleus, which causes retraction of the tentacles to streamline body shape and/or prevent sensory reafference.

Summary: Utricular afferents in the toadfish possess directional sound sensitivity and may contribute to the detection and localization of sound-specific intraspecific vocalizations.

Summary: Scaling of cardiomyocyte ultrastructure across development of the kangaroo is associated with cellular transformation and improved contractile performance during in-pouch growth followed by a decrease in cardiac development and perfusion requirements during post-pouch growth.

Summary: Aquatic surface respiration in fish is a behavioural response that is reliant upon input from peripheral oxygen chemoreceptors.

Summary: Dramatic changes in DNA methylation accompany stages of torpor during mammalian hibernation in the thirteen-lined ground squirrel.


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