Zoology explores the incredible diversity of animal life, from the smallest insects to the largest whales, uncovering how they behave, evolve, and interact with their environments. This field offers a window into the natural world, revealing the complex adaptations and ecological relationships that sustain our planet's biodiversity. Whether studying migration patterns or cellular mechanisms, researchers strive to understand the living systems that share our world.

On Gist.Science, we make these discoveries accessible by processing every new preprint published in this category on bioRxiv. We transform complex scientific manuscripts into both plain-language overviews for general readers and detailed technical summaries for specialists, ensuring that cutting-edge zoological research is clear and usable for everyone.

Below are the latest papers in zoology, freshly summarized and ready for you to explore.

Behavioral characteristics of an extremely old rhesus macaque in a zoo: Dementia-like symptoms and implications for quality of life of geriatric animals

This study documents the behavioral changes, gait alterations, and quality of life of an extremely old rhesus macaque with post-mortem evidence of Alzheimer's-like pathology, highlighting potential signs of physical and cognitive decline while emphasizing the need for further controlled testing to confirm dementia in geriatric primates.

Yamanashi, Y., Bando, H., Niimi, K., Nakagawa, D., Iwaide, S., Murakami, T.2026-03-19🐾 zoology

Photosymbiotic algae acquisition and their interactions with the acoel Convolutriloba macropyga

This study characterizes the unique symbiotic relationship between the acoel *Convolutriloba macropyga* and *Tetraselmis* algae, revealing a complex lifecycle involving both vertical and horizontal transmission, distinct spatial localization of symbionts (both extracellular and intracellular), and specific metabolic adaptations in the host.

Pinto, F., Lando, G., Cetrangolo, V., Felbel, K., Grimmer, E., Hejnol, A., Rimskaya-Korsakova, N.2026-03-09🐾 zoology

Creating complete life histories of individual female tsetse (Glossina spp) to study the effects of meteorological conditions on fly size in Zimbabwe

By reconstructing the complete life histories of approximately 90,000 female tsetse flies in Zimbabwe using ovarian dissection and temperature-dependent development models, researchers demonstrated that meteorological conditions, specifically NDVI and temperature, significantly influence fly and egg sizes, thereby enabling the prediction of future population dynamics to enhance vector and disease control efforts.

Hargrove, J. W., Bruce, F., Van Sickle, J.2026-03-09🐾 zoology

Histo-anatomical atlas and thermal tolerance of Garra rufa: A novel small teleost model adaptable to human body temperature

This study establishes *Garra rufa* as a novel laboratory model for human-related research by providing a comprehensive histo-anatomical atlas and confirming its unique ability to survive and remain active at human body temperature (37°C), distinguishing it from the more temperature-sensitive zebrafish.

Kon, T., Kon-Nanjo, K., Nihei, S., Zang, L., Simakov, O., Shimada, Y.2026-03-02🐾 zoology