Issues
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Cover image
Cover Image
Cover: Variation in the spectral composition of natural light environments has been proposed to 'drive' visual signal evolution. Polarization may be particularly effective in complex light environments. In butterflies, a strong evolutionary correlation exists between polarized patterns and light habitat preference (see article by J. M. Douglas et al., pp. 788-799). Composite images show non-polarized Heliconius butterflies from open habitat (top images) and closely related forest species (bottom four images) that exhibit polarized iridescent patterns. Right portions of specimens are false-color images representing degree of polarization. Blue pixels indicate no polarization while green, yellow, red and white indicate increasing polarization. - PDF Icon PDF LinkTable of contents
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Using the reactive scope model to redefine social stress in fishes

In their Review, Katie Gilmour and colleagues redefine the ambiguous concept of social stress by using the reactive scope model as a framework to explain the divergent physiological phenotypes of dominant and subordinate fishes.
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 6 June 2025.
Thirteen-lined ground squirrels survive extraordinarily low blood oxygen

Brynne Duffy and colleagues reveal that thirteen-lined ground squirrels are true hypoxia champions surviving extreme low blood oxygen, down to just 34% oxygen, when they emerge briefly from hibernation.
The Company of Biologists Workshops

For the last 15 years, our publisher, The Company of Biologists, has provided an apt environment to inspire biology and support biologists through our Workshops series. Read about the evolution of the Workshop series and revisit JEB's experience with hosting the first Global South Workshop.
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.