In anuran amphibians, vascular filtrate and water of external origin enter the extensive subcutaneous spaces (Carter, 1979), which act as lymph reservoirs (Kampmeier, 1969). Although the volume of the lymphatic system is unknown, Thorson (1964) estimated 20% of the total body weight of Bufo marinus (L.) to be occupied by interstitial fluid, including lymph. This will, of course, vary with the state of hydration. Lymph is returned from the viscera and subcutaneous spaces to the systemic circulation via contractile lymph hearts, which maintain a proper fluid balance between the extracellular compartments (Middler et al. 1968). The high permeability of amphibian blood capillaries facilitates fluid exchange between the circulatory and lymphatic systems and also allows the movement of all normal plasma proteins into the lymph (Conklin, 1930). Being anionic, the proteins are buffers to H+ and should be considered important constituents...
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.
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