Issues
INSIDE JEB
OUTSIDE JEB
COMMENTARY
Pre-adult mortality: should we care about it, and what can we do about it?
Summary: High pre-adult mortality (60–90%) is ubiquitous but most studies do not acknowledge this or build it into experimental design. In this Commentary, I discuss why we should care more about this.
THEORY & MODELLING
Causal models of rate-independent damping in insect exoskeleta
Summary: Energy dissipation within the insect exoskeleton is an important factor within a range of locomotive behaviors. I provide new mechanical models of this dissipation phenomenon, and methods to simulate them.
Filaments repel while muscles propel: conservation of energy explains length-dependent lattice spacing in sarcomeres
Summary: A biophysical model reveals that energy conservation – via electrostatic filament repulsion – explains sarcomere lattice spacing changes, offering the first mechanistic basis for the longstanding constant-volume observation.
RESEARCH ARTICLES
Spectral preferences of mosquitos are altered by odors
Highlighted Article: With CO2 alone, mosquitos show little attraction to green stimuli (475–575 nm); however, the odors of flowers, vertebrate hosts or oviposition sites can shift these preferences, making these stimuli more attractive.
Innate visual attraction before, during and after escape from adverse substrates in carpenter ants
Summary: Carpenter ants orient towards a beacon depending on substrate conditions. Attraction to the beacon emerges before transfer to adverse substrates such as water and persists after leaving them.
Artificial light at night weakens body condition but does not negatively affect physiological markers of health in great tits
Summary: Exposure to artificial light at night during the developmental period in great tit nestlings causes a decline in body condition but has no clear effect on oxidative stress or feather corticosterone levels.
Eastern oysters alter inducible defense mechanism of shell strengthening with age
Summary: Eastern oysters strengthen their shells to reduce predation risk, combining increases to shell hardness and thickness as a strengthening mechanism.
The impact of landscape complexity and composition on honey bee visual learning
Summary:. Honey bees from diverse landscapes show better learning, while those from high edge density areas perform worse, highlighting the importance of landscape diversity for bee foraging and navigation.
Phenotypic plasticity in visual opsin gene expression: a meta-analysis in teleost fish
Highlighted Article: A meta-analysis reveals widespread phenotypic plasticity in opsin gene expression among teleost fish and its common drivers, highlighting key future research areas to achieve an integrative understanding of opsin plasticity.
ECR SPOTLIGHTS
Harnessing physiological research for smarter environmental policy

In their Perspective, Alexia Dubuc and colleagues discuss strategies to strengthen collaboration, communication and engagement between physiological researchers and environmental policy makers to ensure that conservation strategies address the threats posed by climate change.
JEB grants to support junior faculty

Learn about the grants that we launched in 2023 to support junior faculty from two of our awardees: Erin Leonard, Early-Career Researcher (ECR) Visiting Fellowship recipient, and Pauline Fleischmann, Research Partnership Kickstart Travel Grant recipient. The next deadline to apply is 28 November 2025.
Early testing could make risky falls a thing of the past for elderly people

Falls cost healthcare systems billions each year, but there may be a solution. Jiaen Wu and colleagues of Stanford University, USA, suggest that measuring the way someone walks before they get old might let doctors know who is at risk for a potentially life-threatening fall in the future.
Ecosystem engineers on tropical reefs in transition

Giant barrel sponges (GSBs) remain robust to rising seawater temperatures and have rapidly populated reefs stripped of coral cover by climate change. GBSs may be poised to become the dominant habitat-forming organisms in tropical reef ecosystems of the future. In this Review, Joseph Pawlik provides an integrative and critical assessment of research on giant barrel sponges.
Fast & Fair peer review

Our sister journal Biology Open has recently launched the next phase of their Fast & Fair peer review initiative: offering high-quality peer review within 7 working days. To learn more about BiO’s progress and future plans, read the Editorial by Daniel Gorelick, or visit the Fast & Fair peer review page.