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Journal of Experimental Zoology A

@jexpzoo-a.bsky.social
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The Journal of Experimental Zoology Part A publishes articles at the interface of development, physiology, ecology and evolution. t.co/JuePvByyKG

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Journal of Experimental Zoology A @jexpzoo-a.bsky.social · 25/09/2026
Calorie restriction increases behavioral depression and reduces locomotor capacity after immune challenge in Xenopus laevis, revealing how energy limitation shapes tradeoffs between immune performance and activity #Ecophysiology onlinelibrary.wiley.com/doi/10.1002/...
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Journal of Experimental Zoology A @jexpzoo-a.bsky.social · 21/09/2026
A Biomarker for Hydric Stress 💧🐸 Iris darkening in Boana punctata increased with dehydration and partially reversed after rehydration, supporting its use as a robust non-invasive biomarker of hydric stress in amphibians #Ecophysiology onlinelibrary.wiley.com/doi/10.1002/...
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Journal of Experimental Zoology A @jexpzoo-a.bsky.social · 18/09/2026
Modeling revealed sublethal effects of oil exposure on bird populations, reducing fecundity and embryo survival, with frequent or persistent small spills potentially causing significant population-level effects #Conservation onlinelibrary.wiley.com/doi/10.1002/...
onlinelibrary.wiley.com
Sublethal Effects of Crude Oil Exposure Alter Population‐Level Responses in an Individual Based Model of a Passerine Bird
Although large oil spills cause intense ecological damage and receive heavy media and research attention, small spills occur much more frequently and have ecological consequences. Currently, assessme...
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Journal of Experimental Zoology A @jexpzoo-a.bsky.social · 14/09/2026
Acute heat in zebra finches increased body temperature, corticosterone, and blood glucose and ketones. Males and females responded similarly. Despite the physiological adjustments DNA damage was not detected after 5 h of acute heat exposure #Ecophysiology onlinelibrary.wiley.com/doi/10.1002/...
onlinelibrary.wiley.com
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Journal of Experimental Zoology A @jexpzoo-a.bsky.social · 11/09/2026
Thermoregulation and Invasion 🐢 Invasive population of Trachemys scripta elegans maintained high thermoregulatory capability despite suboptimal habitat thermal conditions, potentially providing a competitive advantage over native species #InvasiveSpecies onlinelibrary.wiley.com/doi/10.1002/...
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Journal of Experimental Zoology A @jexpzoo-a.bsky.social · 10/09/2026
Immunoglobulin G levels in lesser long-nosed bats (Leptonycteris yerbabuenae) did not vary among reproductive periods, it was positively related to the bacterial killing ability of plasma in females, and it was lower in young bats than in adult females onlinelibrary.wiley.com/doi/10.1002/...
onlinelibrary.wiley.com
Total Immunoglobulin G Variation Through the Phenological Cycle of Migrant and Resident Lesser Long‐Nosed Bats <i>(Leptonycteris yerbabuenae)</i> in the Drylands of Mexico and Its Relationship With Bacterial Killing‐Ability of Plasma
Bats have unique immunological characteristics among vertebrates. Understanding how the immune system responds during the life cycle of bat populations is crucial for grasping how their defenses agai...
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Journal of Experimental Zoology A @jexpzoo-a.bsky.social · 09/09/2026
Exposure to dim nocturnal light alters the expression of photoperiodic responsiveness and reproduction-related genes in Syrian hamsters (Mesocricetus auratus), suggesting disruption of the photoperiodic regulation of seasonal reproduction #Chronobiology onlinelibrary.wiley.com/doi/10.1002/...
onlinelibrary.wiley.com
Exposure to Dim Light at Night Impairs Photoperiodic and Metabolic Gene Expression in Syrian Hamsters (<i>Mesocricetus auratus</i>)
Rapid urbanisation has significantly increased nighttime illumination, thereby affecting the photoperiod perception of seasonal-breeding animals. In this study, we investigated the effect of dim ligh....
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Journal of Experimental Zoology A @jexpzoo-a.bsky.social · 24/08/2026
Evening primrose oil has a hepatoprotective effect against liver toxicity induced by CCl₄ in albino rats, enhancing oxidative status, reducing TNF-α immunoexpression, and improving both liver function and structure #Hepatology onlinelibrary.wiley.com/doi/10.1002/...
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Journal of Experimental Zoology A @jexpzoo-a.bsky.social · 21/08/2026
In fawn-footed mosaic-tailed rats (Melomys cervinipes), greater indirect maternal care was associated with better learning, while other cognitive measures showed no clear maternal or heritable effects #AnimalBehavior onlinelibrary.wiley.com/doi/10.1002/...
onlinelibrary.wiley.com
Is the Cognitive Ability of Fawn‐Footed Mosaic‐Tailed Rat <i>Melomys cervinipes</i> Offspring Related to Mothers’ Care or Cognitive Abilities?
The cognitive abilities of many non-human animals have been investigated in recent years; however, outside of laboratory rodent strains, it is largely unknown how direct and indirect genetic factors ...
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Journal of Experimental Zoology A @jexpzoo-a.bsky.social · 20/08/2026
This study of the rodent Cerradomys goytaca reveals physiological adaptations in renal function that support its survival in the coastal sandplains (restingas) of Brazil #Ecophysiology onlinelibrary.wiley.com/doi/10.1002/...
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Journal of Experimental Zoology A @jexpzoo-a.bsky.social · 19/08/2026
In the Baikal sponge Lubomirskia baikalensis, decrease of silicon in water inhibits spicule formation and compromises primmorph integrity, potentially slowing sponge growth #AquaticBiology onlinelibrary.wiley.com/doi/10.1002/...
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Journal of Experimental Zoology A @jexpzoo-a.bsky.social · 17/08/2026
In wild wood mice (Apodemus sylvaticus), food supplementation and anthelmintic treatment did not affect fecal corticosterone metabolites, possibly due to seasonal variation in corticosterone levels #Ecophysiology onlinelibrary.wiley.com/doi/10.1002/...
onlinelibrary.wiley.com
Corticosterone Under Experimental Manipulation of Nutrition and Parasite Burden in a Wild Rodent System
Environmental pressures shape survival and life-history dynamics partly by triggering the release of glucocorticoids, whose short-term benefits but long-term costs make it essential to understand wha...
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Journal of Experimental Zoology A @jexpzoo-a.bsky.social · 14/08/2026
Feathers of a Bird 🪶 The skin architecture and feather microbial populations of three avian species with different lifestyles varied with ecological niche #AvianBiology #Ecology onlinelibrary.wiley.com/doi/10.1002/...
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Journal of Experimental Zoology A @jexpzoo-a.bsky.social · 13/08/2026
Temperature-associated environmental conditions, rather than temporal cycles, drive hematologic variation in prairie rattlesnakes. Temperature-specific reference ranges may be needed for accurate clinical interpretation in reptiles #Ecophysiology onlinelibrary.wiley.com/doi/10.1002/...
onlinelibrary.wiley.com
Disentangling Temporal and Environmental Effects on Hematological Values in Prairie Rattlesnakes (<i>Crotalus viridis</i>)
Hematologic assessment is a common clinical tool used to characterize both individual and population health. In ectothermic organisms, the hematologic response is influenced by external factors such ...
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Journal of Experimental Zoology A @jexpzoo-a.bsky.social · 07/08/2026
The limb-reduced skink Ablepharus kitaibelii adjusts its locomotor kinematics according to substrate type, suggesting that its kinematic and motor control strategies are substrate-dependent #Biomechanics #Herpetology onlinelibrary.wiley.com/doi/10.1002/...
onlinelibrary.wiley.com
The Impact of Substrate Properties on the Kinematics of Locomotion in a Limb‐Reduced Skink, <i>Ablepharus kitaibelii</i> (Squamata: Scincidae)
The environment through which animals move is rarely homogenous and requires animals to change their kinematics. Especially for small animals, even seemingly minor variations in substrate characteris...
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Journal of Experimental Zoology A @jexpzoo-a.bsky.social · 06/08/2026
In Djungarian hamsters (Phodopus sungorus), photoperiod, triiodothyronine (T3), and prolactin differentially regulate brown adipose tissue (BAT). While T3 increased BAT mass, prolactin enhanced lipid content #Endocrinology onlinelibrary.wiley.com/doi/10.1002/...
onlinelibrary.wiley.com
Prolactin and Triiodothyronine Modulate Seasonal Variation in Brown Adipose Tissue in Djungarian Hamsters
Seasonal photoperiodic cycles regulate energy rheostasis in many animals. Brown adipose tissue (BAT) and the liver are key metabolic organs that show remarkable plasticity in response to photoperiodi...
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Journal of Experimental Zoology A @jexpzoo-a.bsky.social · 05/08/2026
California Bat Rays exposed to waterborne cues from chased conspecifics increased swimming velocity by ~21%, providing evidence for a disturbance cue mediated behavioral response in elasmobranchs #FishBehavior onlinelibrary.wiley.com/doi/10.1002/...
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Journal of Experimental Zoology A @jexpzoo-a.bsky.social · 04/08/2026
Summer Sheep ☀️🐑 Summer heat stress caused physiological strain in Barbarine ewes but did not impair reproductive function, highlighting their strong resilience to heat stress. #Ecophysiology onlinelibrary.wiley.com/doi/10.1002/...
onlinelibrary.wiley.com
Effects of Summer Heat Stress on Physiological Parameters and Reproductive Efficiency of Barbarine Ewes Under Natural Outdoor or Indoor Conditions
Climate change and rising ambient temperatures increasingly challenge sheep production systems in arid and semi-arid regions, particularly during the summer breeding season. This study evaluated the ...
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Journal of Experimental Zoology A @jexpzoo-a.bsky.social · 03/08/2026
Phymaturus cf. palluma lizards exhibit seasonal differences in preferred and body temperatures, along with moderate thermoregulatory efficiency and the capacity to cope with changes in their natural environment. #Ecophysiology onlinelibrary.wiley.com/doi/10.1002/...
onlinelibrary.wiley.com
Seasonal Thermal Ecology and Locomotor Performance of an Andean Viviparous Lizard: Assessment of Its Vulnerability to Climate Change
Lizards, in general, tend to maintain body temperatures close to and often below physiological optima because of variations in body temperatures, as well as the asymmetry of thermal performance curve...
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Journal of Experimental Zoology A @jexpzoo-a.bsky.social · 28/07/2026
Ionic regulation was studied in estuarine and freshwater shrimp. While the freshwater species Palaemon argentinus increased gill H⁺-ATPase activity at low salinity, the estuarine species Palaemon macrodactylus experienced ion loss and tissue swelling onlinelibrary.wiley.com/doi/10.1002/...
onlinelibrary.wiley.com
Ionic Regulation in Estuarine and Freshwater Palaemonid Shrimp
Hyper-regulation requires animals to absorb ions against concentration gradients. Although ion absorption would involve different pathways in estuarine and freshwater organisms, current models remain...
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Journal of Experimental Zoology A @jexpzoo-a.bsky.social · 27/07/2026
Plasma metabolomics revealed metabolic differences between the European rabbit (Oryctolagus cuniculus) subspecies, identifying candidate biomarkers that reflect functional divergence likely driven by genetic background and ecological factors #Metabolomic onlinelibrary.wiley.com/doi/10.1002/...
onlinelibrary.wiley.com
Beyond Genes: Metabolomic Evidence Indicates Potential Species‐Level Differentiation in European Wild Rabbits
The European rabbit (Oryctolagus cuniculus) plays a key ecological role in Mediterranean ecosystems, yet its populations are declining. Two subspecies, O. c. algirus and O. c. cuniculus, are present ...
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Journal of Experimental Zoology A @jexpzoo-a.bsky.social · 24/07/2026
Acute cold stress in juvenile yellowfin tuna (Thunnus albacares) triggered a biphasic metabolic response, with initial inhibition followed by compensation. Prolonged exposure to cold caused severe gastrointestinal tissue damage #FishPhysiology onlinelibrary.wiley.com/doi/10.1002/...
onlinelibrary.wiley.com
Impacts of Acute Hypothermia Stress on Gastrointestinal Digestive Enzyme Function and Pathological Changes in Yellowfin Tuna (<i>Thunnus albacares</i>)
This study investigated the effects of acute cold stress on digestive function and gastrointestinal pathology in juvenile yellowfin tuna (Thunnus albacares). The experimental setup encompassed a cont...
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Journal of Experimental Zoology A @jexpzoo-a.bsky.social · 23/07/2026
Microplastics in Muscles 🎣 This study in grass carp (Ctenopharyngodon idella) revealed that long-term microplastic exposure may affect muscle quality through mechanisms involving oxidative stress and inflammatory responses #Microplastics onlinelibrary.wiley.com/doi/10.1002/...
onlinelibrary.wiley.com
Thirty Weeks of Microplastics Exposure Alters Muscle Quality in Grass Carp (<i>Ctenopharyngodon idella</i>) Revealed by Transcriptomics and Metabolomics
Microplastics (MPs) are tiny particles with a diameter of less than 5 mm generated from the breakdown of plastic waste. In recent years, MPs have extensively entered aquatic environments and accumula...
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Journal of Experimental Zoology A @jexpzoo-a.bsky.social · 22/07/2026
Shapes and Survival 🐠 In the damselfish Dascyllus carneus, survival is closely linked to morpho-functional development, with mortality peaking during early developmental stages marked by major morphological changes #DevelopmentalBiology onlinelibrary.wiley.com/doi/10.1002/...
onlinelibrary.wiley.com
Highly Divergent Age‐Specific Postembryonic Developmental Constraints and Phenotypic Plasticity in Hatchery‐Reared Tropical Cloudy Damselfish, <i>Dascyllus carneus</i> Fischer, 1885
The proper understanding and standardization of animal growth is one of the fundamental problems in developmental biology. This means their morphology, behavior, and feeding habits will change as the...
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Journal of Experimental Zoology A @jexpzoo-a.bsky.social · 21/07/2026
Seasonal remodeling of camel spleen architecture was revealed using histology, semithin sections, and immunohistochemistry. Quantitative image analysis showed summer-associated changes in immune cell distribution, proliferation, and vascular specialization onlinelibrary.wiley.com/doi/10.1002/...
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Journal of Experimental Zoology A @jexpzoo-a.bsky.social · 20/07/2026
Immune-challenged male field crickets (Gryllus bimaculatus) reduced acoustic sexual signaling but maintained sperm production and sperm oxidative status. Immune activation also had intergenerational effects on offspring behavior #BehavioralEcology onlinelibrary.wiley.com/doi/10.1002/...
onlinelibrary.wiley.com
Immune Activation Reshapes Male Reproductive Investment and Induces Intergenerational Effects on Offspring
The activation of the immune system is a major physiological challenge that can compromise reproductive investment in males. While its effects on visual sexual signals have been widely investigated, ....
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Journal of Experimental Zoology A @jexpzoo-a.bsky.social · 16/07/2026
Seasonal metabolism in the sand lizard (Liolaemus arambarensis) differs by sex and age, with females allocating energy to vitellogenesis, males storing and mobilizing reserves for reproduction, and juveniles prioritizing growth and survival #Ecophysiology onlinelibrary.wiley.com/doi/10.1002/...
onlinelibrary.wiley.com
Tracking the Pulse of the Dunes: Seasonal Metabolic Responses of <i>Liolaemus arambarensis</i> to Climatic Variability
Seasonal environmental fluctuations profoundly influence ectothermic vertebrates, regulating their physiology, metabolism, and life cycles. This study investigated the metabolic and morphometric seas....
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Journal of Experimental Zoology A @jexpzoo-a.bsky.social · 14/07/2026
Big-belly seahorses (Hippocampus abdominalis) co-exposed to microplastics and the pathogen Vibrio harveyi exhibited disrupted immune homeostasis due to the synergistic physiological stress imposed by these two factors #MarineBiology onlinelibrary.wiley.com/doi/10.1002/...
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Journal of Experimental Zoology A @jexpzoo-a.bsky.social · 13/07/2026
In nine-spined sticklebacks (Pungitius sinensis), male kidney extracts attracted ovulating females, suggesting that the nest adhesive protein spiggin also functions as a chemical cue during reproduction #FishBehavior onlinelibrary.wiley.com/doi/10.1002/...
onlinelibrary.wiley.com
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Journal of Experimental Zoology A @jexpzoo-a.bsky.social · 10/07/2026
In common carp (Cyprinus carpio), trophic discrimination factors varied with temperature, highlighting the importance of considering environmental thermal conditions in evaluating stable isotope signatures in trophic studies #FishEcology onlinelibrary.wiley.com/doi/10.1002/...
onlinelibrary.wiley.com
The Effect of Temperature on Trophic Discrimination of Stable Isotopes (<sup>13</sup>C and <sup>15</sup>N) and Biokinetics in Common Carp (<i>Cyprinus carpio</i>, L. 1758)
Stable isotope analysis (SIA) provides essential information toward a better understanding of trophic ecology. However, the interpretation of SIA results relies on assumptions about the trophic discr...
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Journal of Experimental Zoology A @jexpzoo-a.bsky.social · 09/07/2026
Cell-mediated immune responses, measured by phytohemagglutinin (PHA)-induced skin swelling, were significantly greater in domesticated Bengalese finches than those in their wild ancestors, the white-rumped munias #Ecophysiology onlinelibrary.wiley.com/doi/10.1002/...
onlinelibrary.wiley.com
Domestication Effects on Immune Response: Comparison of Phytohemagglutinin‐Induced Skin Swelling in Domesticated Bengalese Finch and Its Wild Ancestor, White‐Rumped Munia
Cell-mediated immune responses were compared between the domesticated Bengalese finch (Lonchura striata var. domestica) and its wild ancestor, the white-rumped munia (Lonchura striata), using phytohe....
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Journal of Experimental Zoology A @jexpzoo-a.bsky.social · 25/06/2026
Fly Off 🪰 The bacterium Serratia marcescens exhibited strong entomopathogenic activity against the melon fly (Bactrocera cucurbitae), damaging the midgut and disrupting immune-related gene expression. #Entomology #Biocontrol onlinelibrary.wiley.com/doi/10.1002/...
onlinelibrary.wiley.com
Entomopathogenic Potential of a Species of Serratia marcescens Originating from the Gut of Melon Fly: Isolation, Characterization and Effect of Oral Administration
The melon fly, Bactrocera cucurbitae (Coquillett), represents a devastating agricultural pest species. Conventional chemical control strategies are increasingly compromised by the development of inse....
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Journal of Experimental Zoology A @jexpzoo-a.bsky.social · 24/06/2026
Taking a Breath 🐟 Air-gulping in Awaous tajasica contributes directly to oxygen uptake under hypoxic conditions, with fish obtaining ~30% of oxygen from air despite lacking specialized air-breathing organs #FishPhysiology onlinelibrary.wiley.com/doi/10.1002/...
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Journal of Experimental Zoology A @jexpzoo-a.bsky.social · 22/06/2026
Using an automated pipeline to quantify aggressive behaviors in Mexican tetra (Astyanax mexicanus), researchers found distinct differences between surface and cave fish during juvenile stages #Behavior onlinelibrary.wiley.com/doi/10.1002/...
onlinelibrary.wiley.com
Automated Profiling of Social Behaviors to Assess the Genetic Basis of Evolution of Aggressive Behaviors in Astyanax mexicanus
Across the animal kingdom, social behaviors such as aggression are critical for survival and reproductive success. While there is significant variation in social behaviors within and between species,...
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Journal of Experimental Zoology A @jexpzoo-a.bsky.social · 18/06/2026
In Chinese moccasins (Deinagkistrodon acutus), short-term cold exposure decreased serum lipids and antioxidant indicators while upregulating anti-apoptotic mechanisms, revealing aspects of the transition from activity to hibernation in ectotherms #Snakes onlinelibrary.wiley.com/doi/10.1002/...
onlinelibrary.wiley.com
The Effects of Short‐Term Cold Exposure on Serum Lipids, Antioxidant Capacity, and Hepatic Cell Apoptosis in Chinese Moccasin (Deinagkistrodon acutus)
Hibernation is an amazing survival skill that some animals use to cope with natural challenges, and cold is the main stimulus. While most hibernation studies focus on long-term cold adaptation mechan...
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Journal of Experimental Zoology A @jexpzoo-a.bsky.social · 17/06/2026
Following the trail 🐺 In Iberian wolves, the persistence of fecal chemical compounds declines over time and differs among substrates, while substrate temperature has only limited effects #AnimalBehavior onlinelibrary.wiley.com/doi/10.1002/...
onlinelibrary.wiley.com
Experimental Assessment of the Effects of Substrate Choice on the Duration of Chemical Signals in Fecal Scent‐Marks of Free‐Ranging Iberian Wolves
Chemical communication, typically based on feces, urine, and glandular secretions, often deposited as substrate scent marks, plays a key role in social organization and communication among many mamma...
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Journal of Experimental Zoology A @jexpzoo-a.bsky.social · 15/06/2026
🐣 In chicken embryos (Gallus gallus), Liver X Receptor α (LXRα) regulates the expression of 5β-reductase (AKR1D1), a key enzyme involved in metabolizing yolk steroids #DevelopmentalBiology #Endocrinology onlinelibrary.wiley.com/doi/10.1002/...
onlinelibrary.wiley.com
Liver X Receptor α (LXRα) Regulates 5β‐Reductase (AKR1D1) Expression in Avian Embryos: Implications for Yolk Steroid Metabolism
Steroid-mediated maternal effects are well-studied as a source of phenotypic variation. In bird eggs, the yolk contains various steroids that can influence embryonic development. However, one complic...
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Journal of Experimental Zoology A @jexpzoo-a.bsky.social · 08/06/2026
In the seasonally breeding Red Munia (Amandava amandava), growth hormone (GH) levels increase during testicular recrudescence and breeding, correlating with testis growth #Endocrinology onlinelibrary.wiley.com/doi/10.1002/...
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Journal of Experimental Zoology A @jexpzoo-a.bsky.social · 22/05/2026
The alligator gar (Atractosteus spatula) exhibits gill adaptations for salinity acclimation similar to many teleosts, with saline exposure increasing Na+, K+-ATPase-rich ionocytes #FishPhysiology onlinelibrary.wiley.com/doi/10.1002/...
onlinelibrary.wiley.com
Effects of Salinity on Gill Ultrastructure of Alligator Gar Atractosteus spatula
The alligator gar, Atractosteus spatula (Lacépède, 1803), is a euryhaline, bimodal breather, occupying a wide range of habitats. The gills and swim bladder are both respiratory organs, creating a pot...
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Journal of Experimental Zoology A @jexpzoo-a.bsky.social · 20/05/2026
Male tree swallows (Tachycineta bicolor) reduce offspring provisioning at high temperatures before reaching overheating thresholds. Females also adjust their activity to match male behavior #Ornithology #Ecophysiology onlinelibrary.wiley.com/doi/10.1002/...
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Journal of Experimental Zoology A @jexpzoo-a.bsky.social · 18/05/2026
Metabolomic analyses of Hylarana erythraea frogs show that habitat disturbance alters skin metabolite profiles, with minimally disturbed ponds associated with higher LPCs, while disturbed sites exhibit xenobiotics and stress markers #Conservation onlinelibrary.wiley.com/doi/10.1002/...
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Journal of Experimental Zoology A @jexpzoo-a.bsky.social · 14/05/2026
Nano-selenium supplementation improved liver health in grass carp (Ctenopharyngodon idellus) by reducing oxidative stress, modulating amino acid and lipid metabolism, and enhancing hepatocyte membrane stability #FishPhysiology onlinelibrary.wiley.com/doi/10.1002/...
onlinelibrary.wiley.com
Thirty Weeks Dietary Nano‐Selenium Improves Liver Health of Grass Carp (Ctenopharyngodon idella) Revealed by Transcriptomics and Metabolomics
Grass carp (Ctenopharyngodon idellus), China's most valuable freshwater aquaculture species, exhibits growth and nutrient utilization efficiency that are highly dependent on feed quality. After macro...
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Journal of Experimental Zoology A @jexpzoo-a.bsky.social · 11/05/2026
Mammalian limb dynamics vary across biological factors, with body mass emerging as the dominant predictor. Despite this, angular utilization remains broadly conserved across mammals, consistent with shared neuromechanical coordination. #Biomechanics onlinelibrary.wiley.com/doi/10.1002/...
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Journal of Experimental Zoology A @jexpzoo-a.bsky.social · 08/05/2026
This study evaluated the expression of oxidative stress and angiogenesis related genes in testes of roe deer (Capreolus capreolus), revealing differential expression between pre- and post-rut periods 🦌 #ReproductiveBiology onlinelibrary.wiley.com/doi/10.1002/...
onlinelibrary.wiley.com
Molecular Investigations on Angiogenesis and Oxidative Stress in Roe Deer (Capreolus capreolus) Bucks' Testes Throughout the Reproductive Cycle
Animals with seasonal reproductive cycles, as the Roe deer (Capreolus capreolus), have developed mechanisms to synchronize reproduction with the environmental cycle in order to optimize reproductive ...
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Journal of Experimental Zoology A @jexpzoo-a.bsky.social · 07/05/2026
In pond sliders (Trachemys scripta), incubation temperature and overwintering environment affected hatchling size and righting performance. Nest-overwintered hatchlings showed consistently faster righting #Ontogeny onlinelibrary.wiley.com/doi/10.1002/...
onlinelibrary.wiley.com
Incubation and Overwintering Conditions Influence Righting Performance of Hatchling Turtles
Conditions experienced during early life stages may influence an array of fitness-relevant phenotypes, especially in oviparous ectotherms. The pond slider (Trachemys scripta) has two life stages part....
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Journal of Experimental Zoology A @jexpzoo-a.bsky.social · 28/04/2026
Maternal environment and offspring behavior 🐹 Siberian hamsters (Phodopus sungorus) show reduced aggression and social interaction over prolonged intruder encounters, regardless of maternal environment #Ontogeny onlinelibrary.wiley.com/doi/10.1002/...
onlinelibrary.wiley.com
Getting Over It: Maternal Stress and Gut Microbiome Manipulations Do Not Affect Rates of Offspring Habituation During Long Bouts of Stress
Conspecific competitive interactions occur in a variety of contexts, including for resources and territory. These competitive interactions can vary in frequency and duration. The amount of aggression...
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Journal of Experimental Zoology A @jexpzoo-a.bsky.social · 22/04/2026
Corticosterone & Sex Determination 🐊 Eggs of broad-snouted caimans (Caiman latirostris) exposed to exogenous corticosterone (maternal stress mimic) shifted sex ratios from ~30% ♂ to 75% ♂, increasing the proportion of male hatchlings per nest #Ontogeny onlinelibrary.wiley.com/doi/10.1002/...
onlinelibrary.wiley.com
Effect of Prenatal Exposure to Corticosterone on Broad‐Snouted Caiman (Caiman latirostris) Hatchlings
Living organisms face stressful situations and use endocrine mechanisms, such as glucocorticoid production, to maintain homeostasis. Although glucocorticoids are essential for basal function, their s...
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Journal of Experimental Zoology A @jexpzoo-a.bsky.social · 16/04/2026
This study reports ophidiomycosis prevalence in dice snakes (Natrix tessellata): in a Lake Como population, ~53% carried Ophidiomyces and ~24% showed disease, with higher risk in smaller individuals #DiseaseEcology #Herpetology onlinelibrary.wiley.com/toc/24715646...
onlinelibrary.wiley.com
Journal of Experimental Zoology Part A: Ecological and Integrative Physiology: Vol 345, No 3
The Journal of Experimental Zoology – A publishes articles at the intersection of animal development, physiology, ecology, and evolution.
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Journal of Experimental Zoology A @jexpzoo-a.bsky.social · 13/04/2026
Biting Back 🐢 Northern giant musk turtles (Staurotypus triporcatus) show increasing bite force with size, while lunge speed stays constant, juveniles strike as fast as adults #Ontogeny onlinelibrary.wiley.com/doi/10.1002/...
onlinelibrary.wiley.com
Baby Got Bite: Kinematics and Ontogenetic Scaling of Bite Performance in the Northern Giant Musk Turtle (Staurotypus triporcatus)
Body size strongly influences the life history, behavior, and ecology of vertebrates, yet few studies have quantified biomechanical performance across ontogeny, and turtles are rarely examined in thi....
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Journal of Experimental Zoology A @jexpzoo-a.bsky.social · 10/04/2026
Southern alligator lizards (Elgaria multicarinata) grip mates using a unique “sustained force” in jaw muscles, absent in limb muscles #ComparativePhysiology onlinelibrary.wiley.com/doi/10.1002/...
onlinelibrary.wiley.com
Prevalence and Mechanisms of Sustained Force Production in the Musculature of the Southern Alligator Lizard (Elgaria multicarinata)
The southern alligator lizard (Elgaria multicarinata) exhibits prolonged mate-holding behavior. This behavior maybe be underpinned by a phenomenon known as sustained force, observed in the jaw muscle...
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