Issues
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Cover image
Cover Image
Cover: Hibernators possess the remarkable ability to weather harsh winter conditions, year after year. For example, the thirteen-lined ground squirrel (Ictidomys tridecemlineatus), pictured here, is a champion of hibernation that can survive without access to food, water or warmth for several months. Junkins et al. (jeb229542) review what is known about the brain's role in coordinating this extreme physiological state. Photo credit: Gracheva laboratory.
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INSIDE JEB
OUTSIDE JEB
EDITORIAL
REVIEW
Towards understanding the neural origins of hibernation
Summary: The nervous system does not simply endure hibernation; instead, it actively promotes and supports this complex physiological process.
METHODS & TECHNIQUES
Quantifying avian inertial properties using calibrated computed tomography
Summary: Demonstration of the use of calibrated computed tomography to accurately quantify the three-dimensional centre of mass and moments of inertia of birds of prey.
Revealing sound-induced motion patterns in fish hearing structures in 4D: a standing wave tube-like setup designed for high-resolution time-resolved tomography
Summary: To characterize the sound-induced motion of fish auditory structures in 4D, we developed a tomography-compatible standing wave tube-like setup and thereby demonstrated the previously hypothesized rotational motion of otophysan sagittae.
RESEARCH ARTICLES
Energetic costs of ectoparasite infection in Atlantic salmon
Summary: The energetic burden of Lepeophtheirus salmonis lice infections of different life-stages and intensities in young Atlantic salmon assessed with an aerobic scope framework.
Tissue- and substrate-dependent mitochondrial responses to acute hypoxia–reoxygenation stress in a marine bivalve (Crassostrea gigas)
Summary: Oyster mitochondria show tissue-specific substrate preferences with low propensity for reverse electron transport. Hypoxia–reoxygenation stress suppresses mitochondrial oxidation capacity for NADH-linked substrates but enhances succinate oxidation, thus supporting post-hypoxic recovery.
Flight activity and age cause wing damage in house flies
Highlighted Article: Wing damage in house flies progresses according to a logistic function, albeit with large inter-individual differences; animals can still fly with two-thirds of wing area remaining.
Climbing parrots achieve pitch stability using forces and free moments produced by axial–appendicular couples
Highlighted Article: Parrots ascend primarily by pulling upward from an overhead branch using the beak and feet, while resisting the gravitational pitching moment with horizontal force couples of the beak, feet and tail.
The cellular basis of compensatory muscle growth in the teleost Odontesthes bonariensis
Summary:In vivo labeling experiments demonstrate that a population of myoblasts continues proliferating, and muscle hypertrophy but not hyperplasia is inhibited under growth adverse conditions in the teleost Odontesthes bonariensis.
The relationship between head shape, head musculature and bite force in caecilians (Amphibia: Gymnophiona)
Summary: Feeding mechanics in caecilians is complex. No relationships between bite force and skull shape were detected, but our results do suggest variation in how caecilians use their jaw-closing muscles.
Enhanced resistance to Ca2+-induced mitochondrial permeability transition in the long-lived red-footed tortoise Chelonoidis carbonaria
Summary: Mitochondrial properties of red-footed tortoises may underlie their slower senescence rates and increased lifespan.
Comparative sound detection abilities of four decapod crustaceans
Summary: Sound detection is complex in crustaceans and a multitude of sensory receptors are likely to be involved.
Different patterns of chronic hypoxia lead to hierarchical adaptive mechanisms in goldfish metabolism
Summary: In goldfish, constant hypoxia leads to greater benefits in swimming performance in normoxia. Frequency of exposure to environmental hypoxia could be a key driver of mitochondrial metabolic adjustments.
Nutritional symbionts enhance structural defence against predation and fungal infection in a grain pest beetle
Summary: Nutritional bacterial symbionts of the saw-toothed grain beetle Oryzaephilus surinamensis enhance host cuticle formation, conferring protection against predation and fungal infection.
CORRECTIONS
Celebrating 100 years of discovery

We are proud to be celebrating 100 years of discovery in Journal of Experimental Biology. Visit our centenary webpage to find out more about how we are marking this historic milestone.
Craig Franklin launches our centenary celebrations

Editor-in-Chief Craig Franklin reflects on 100 years of JEB and looks forward to our centenary celebrations, including a supplementary special issue, a new early-career researcher interview series and the launch of our latest funding initiatives.
Looking back on the first issue of JEB

Journal of Experimental Biology launched in 1923 as The British Journal of Experimental Biology. As we celebrate our centenary, we look back at that first issue and the zoologists publishing their work in the new journal.
Webinar: Increasing the visibility and impact of your research
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Would you like to increase the visibility and impact of your research and raise your profile internationally? If so, register for the very practical webinar we are running in association with HUBS on 23 February 2023.
Biology Communication Workshop: Engaging the world in the excitement of research
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We are delighted to be sponsoring a Biology Communication Workshop for early-career researchers as part of JEB’s centenary celebrations. The workshop focuses on how to effectively communicate your science to other researchers and the public and takes place the day before the CSZ annual meeting, on 14 May 2023. Find out more and apply here.
Mexican fruit flies wave for distraction

Dinesh Rao and colleagues have discovered that Mexican fruit flies vanish in a blur in the eyes of predatory spiders when they wave their wings at the arachnids, buying the flies time to make their escape.