This article examines Charles Bell’s experimental practices by drawing historiographical attention away from the priority disputes over the spinal nerve functions for which he was most famous. I argue that Bell’s primary research interest was the expression of emotions. To this end, he developed a programme of vivisection that explored the underlying mechanisms of emotion. However, this also resulted in a profound contradiction between his experimental practices and his worldview – conducting painful experiments on beloved animals despite moral revulsion towards animal experimentation. This opens up three interconnected areas. Firstly, it allows an exploration of disciplinary identity in medicine, particularly the way that disciplines demanded specific practices and behaviours. Secondly, vivisection more generally required methods and ethics that opposed the growing anti-cruelty voice. Here, a combination of animal choice and the importation of techniques from the slaughterhouses was critical. Thirdly, vivisectors navigated a complex emotional landscape between their professional obligations and broader cultural sensibilities. These three areas are linked together using Boddice’s concept of moral economies, the affective frameworks that structured feelings. Particularly important were the sentimental and Romantic economies, both of which impacted Bell and his research. At the same time, Bell always struggled to reconcile the tensions between his disciplinary identity and his sentimental and Romantic beliefs, ultimately leading him to abandon experimentation after his assistant John Shaw’s death. I conclude by identifying the guarantees provided by character for licensing ostensibly cruel behaviours, thus allowing for the maintenance of probity within competing moral economies.

This paper examines the history of the ‘lower cavity’ of the gastrointestinal tract, a distinctive anatomical feature in Greco-Roman medicine that described a second stomach-like organ in the large intestine. It traces how a bipartite model of the digestive system emerged in fourth-century bce Greek medical and philosophical thought and persisted in the works of influential figures such as Galen, Vesalius, and Glisson, despite shifts in terminology, anatomical observations, and physiological theories. The study demonstrates that this understanding arose primarily from three complementary factors: a specific terminology that paired the stomach with a lower cavity, systematic animal dissections that revealed pronounced caeca in certain species, and emerging physiological theories that required separate bodily receptacles for digested food and residues. Through this case study, the paper illuminates how premodern anatomical knowledge was articulated by a constant negotiation between animal bodies, human bodies, and past textual authorities, facilitating the surprising longevity of ideas like the ‘lower cavity’ in the gastrointestinal tract.

We evaluated the physiological condition of the Pygoscelis penguins at Isla 25 de Mayo/King George Island (Antarctica Peninsula). Samples were collected from adults and chicks of Adélie (Pygoscelis adeliae, n = 20 each), gentoo (Pygoscelis papua, n = 20 chicks and n = 24 adults) and chinstrap penguins (Pygoscelis antarcticus, n = 18 each). We analysed haematological and biochemical parameters as indicators of health, immune response and nutrition. Gentoo penguin chicks exhibited higher haematocrits, indicating development linked to erythropoiesis and reticulocyte release from bone marrow or signalling dehydration related to fasting periods in chicks. Adélie penguins had increased total leukocyte counts, basophils and eosinophils, whereas gentoo penguins showed elevated heterophils and decreased lymphocytes, resulting in a higher heterophil/lymphocyte ratio stress index, possibly due to the impact of human activities. Chinstrap penguins from a remote area exhibited the lowest heterophil/lymphocyte ratio values. Adélie penguins showed more erythrocytic nuclear abnormalities, indicating sensitivity to environmental deterioration due to human impacts. The biochemical results were less consistent; Adélie penguins had higher cholesterol, whereas gentoo penguins had elevated triglycerides. Gentoo penguins showed dietary adaptability based on prey availability in this area. Our findings highlight the vulnerability of Adélie penguins and contribute to a 20 year physiological monitoring dataset for Antarctic penguins, which will aid future comparative studies.

Marine aerosols can enter the terrestrial environment via sea spray which is known to affect the stable isotope fingerprint of coastal samples (plants, animals/humans), including δ13C. However, the impact of sea spray on 14C dating of terrestrial organisms at coastal sites has not been investigated so far. Besides a direct effect, sea spray is accompanied by physiological effects, e.g., due to salinity. In an artificial sea spray experiment in the greenhouse, the effect of sea spray on 14C in plant tissue was investigated. Beach grass was sprayed with mineral salt solutions containing only traces of NaCl or with brackish water from the Schlei inlet or the Baltic Sea. These plants should give a 14C signal close to the modern atmospheric 14CO2 composition. However, three treatment groups showed variable radiocarbon concentrations. Plants sprayed with water from the Schlei inlet, Baltic Sea water, or with a mineral salt solution with very high HCO3– concentration are depleted in 14C content relative to contemporary atmospheric composition. While δ13C reflects physiological effects in the plants, caused either by salinity (NaCl) or HCO3– stress, resulting in decreased discrimination against 13C, the uptake of high amounts of 14C (ca. 53–67%) from DIC (dissolved inorganic carbon) partly masks the underlying physiological reactions, as is visible in the radiocarbon signature of the plant tissues. This preliminary study indicates that sea spray effects on plant tissue could potentially influence faunal tissue 14C composition at coastal sites. Further research is required to better understand the observed reservoir effect.

New information on the growth analysis for different cassava genotypes grown under different irrigation managements during the early growth phase could support decision-making to improve crop productivity. This study aimed to determine the performance of 20 cassava genotypes grown under different irrigation management practices during the early growth phase. A strip-plot design with four replications was used during two growing seasons (2019/2020 and 2020/2021). Three levels of irrigation from 30 to 180 days after planting (DAP) were assigned as factor A (W1 = 100%, W2 = 60% and W3 = 20% of the crop water requirement), whereas 20 cassava genotypes were assigned as factor B. Crop data were recorded on SPAD chlorophyll meter reading (SCMR), specific leaf area (SLA) and leaf area index (LAI) at 180 and 330 DAP, relative growth rate (RGR) from 180 to 330 DAP and harvest index (HI) at 330 DAP. The genotypes CMR36-31-381 and Huay Bong 90 had high values of HI, indicating a good partitioning of photosynthate to the storage root. These two genotypes also showed superior performances in terms of SCMR, SLA and RGR inW2 and W3 treatments when compared to the other genotypes. They also had LAI values within the optimum range during the period of maximum canopy size. Therefore, the genotypes CMR36-31-381 and Huay Bong 90 could be used as genetic resources to improve cassava productivity under different irrigation levels.