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Summary: The ease and inconsequence with which raw experimental data can be manipulated without trace may require a change in how these data are made available, as discussed in this Perspective.


Summary: An improved method for collecting haemolymph from Drosophila larvae and measuring its osmolality, allowing a reasonable estimate of the true value.


Highlighted Article: The transmission of mechanical work is modeled in hydrostatic skeletons. As these structures deform, they exhibit variable gearing in a manner determined by the mechanics of their fiber winding.


Summary: An odorant that activates only one odorant receptor, Or7a, in Drosophila larvae becomes strongly attractive at higher concentrations, by recruiting activation of additional odorant receptors.

Summary: Jaw-closing forces and velocities of loggerhead shrikes correlate with upper bill depression and lower bill elevation, respectively; this potential division of labor between upper and lower jaws might allow them to maximize biting power.

Summary: Flight muscle mitochondria from migratory yellow-rumped warblers are more abundant, have higher phosphorylating respiration but similar reactive oxygen species emission compared with those of wintering warblers.

Summary: Holding wild-caught male house finches in cages exposed a relationship between red carotenoid production and mitochondrial respiratory efficiency.

Highlighted Article: Freely competing mantis shrimp dissipate 90% of the energy of high-force strikes by raising their impact-resistant tailplates off the substrate; faster strikes led to greater proportional energy dissipation.

Summary: Despite being freeze-avoidant, overwintering Dendroctonus ponderosae larvae experience physiological stress when exposed to severe, non-freezing cold. This is linked to a disruption of ion balance akin to that in chill-susceptible insects.

Highlighted Article: Analysis of the fine-scale hunting tactics of Antarctic fur seals reveals that fur seals rely on their ability to perform bursts of acceleration to capture their small evasive prey.

Summary: Scaling of metabolic traits differs among life stages and taxa of corals. Data compilation and empirical results suggest that variation in scaling is determined by life history and surface area to biomass ratio.

Highlighted Article: Elongated hindlimbs improve lunge-jumping performance in the selectively bred Longshanks mouse, primarily by increasing contact time and decreasing mass-specific take-off forces.

Summary: Following acute cold exposure, bumble bees mount a rapid, yet short-lived, transcriptional response characterized by changes in gene expression patterns that influence metabolic shifts.


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