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Cover Image
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Cover: Emperor penguins, Aptenodytes forsteri, at Cape Crozier, Ross Island, Antarctica. J. U. Meir and P. J. Ponganis (pp. 3330−3338) revealed that emperor penguin haemoglobin has enhanced oxygen (O2) affinity, similar to high-altitude birds, which contributes to the exceptional diving capability of this species. Application of the O2−haemoglobin dissociation curve to partial pressure of O2 (PO2) profiles of emperor penguins demonstrated the maintenance of arterial blood O2 saturation near 100% throughout much of the dive, and optimisation of the venous blood O2 store. In contrast to other diving animals, these results demonstrate that respiratory gas exchange is maintained during these dives. Photo by J. U. Meir.Close Modal - PDF Icon PDF LinkTable of contents
In the field: an interview with Harald Wolf
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In our new Conversation, Harald Wolf talks about his fieldwork experiences working with desert ants in Tunisia to understand their navigation.
Propose a new Workshop
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Our Workshops bring together leading experts and early-career researchers from a range of scientific backgrounds. Applications are now open to propose Workshops for 2024, one of which will be held in a Global South country.
Julian Dow steps down and John Terblanche joins the JEB team
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After 15 years with the journal, Julian Dow from University of Glasgow, UK, is stepping down as a Monitoring Editor. We wish Julian all the best for the future and welcome John Terblanche, Stellenbosch University, South Africa, who is joining the team. Julian talks about his long association with The Company of Biologists and the journal and John tells us about his life and career in this News article.
An accelerometer-derived ballistocardiogram method for detecting heart rate in free-ranging marine mammals
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Max Czapanskiy and co show how the resting heart rates of blue whales are immortalized in the accelerometry traces collected by motion sensing data tags.
Global change and physiological challenges for Amazonian fish
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In their Review, Adalberto Luis Val and Chris Wood discuss the physiological threats to the unique and diverse fish fauna of Amazonia.
