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Together, or not together, that is the question. Hamlet is not the only one facing life-changing questions – wild animals have to make decisions pivotal to their survival on a daily basis. In a modelling case study, scientists of the GAIA Initiative investigated whether exchange of information among African white-backed vultures (Gyps africanus) bring more advantages than disadvantages to the individual vulture in its search for food. They found that social foraging strategies are overall more beneficial than non-social strategies, but that environmental conditions such as vulture and carcass densities greatly influence which strategy yields the best results.

The ambient temperature has a profound impact on the physiology and behaviour of most species. In regions where individuals rely on low temperatures to hibernate effectively, global warming is likely to significantly affect their survival. A team of scientists studied how ambient temperatures shape the energy expenditure of common noctule bats and built a model to predict at which latitudes they could survive hibernation. This model also predicts how the hibernation areas of these bats could change over time. It accurately tracks the northward range shift of this species over the past 50 years and shows a further northeast expansion of up to 14 percent of its current range by 2100 – driven by shorter and warmer winters in Europe.

According to his family, the veterinarian scientist Prof Dr Reinhold R Hofmann passed away on 30 March 2025 at the age of 92. Hofmann worked at Justus Liebig University Giessen (JLU), in Kenya, the USA and finally back at JLU. In 1992, Hofmann was appointed as founding director of the Leibniz Institute for Zoo and Wildlife Research (Leibniz-IZW) in Berlin and the first professor for Interdisciplinary Zoo and Wildlife Science in Germany at the Freie Universität Berlin. He headed the Leibniz-IZW until his retirement at the end of 1999.

Infections with parasites often entail no recognisable signs in many wildlife species, but can have still negative effects across generations. Infected animals often have a slightly reduced body size and their offspring have a harder start in life. A team of scientists from the Leibniz Institute for Zoo and Wildlife Research (Leibniz-IZW), the Technische Universität Berlin and the University of Potsdam now have shown for the first time, that the impaired reproductive success is connected to altered movement behaviour: Infected starlings have a smaller action radius, which limits their access to high-quality foraging habitats. The paper is published in the scientific journal “Proceedings of the Royal Society B: Biological Sciences”.

On 28 March 2025, the Leibniz Institute for Zoo and Wildlife Research (Leibniz-IZW) bid farewell to its director Prof Heribert Hofer after more than 25 years in office. His temporary successor, Prof Jörns Fickel, head of the Department of Evolutionary Genetics, will take over on 1^st April 2025. A joint appointment for the directorate of the Leibniz-IZW and the professorship for Interdisciplinary Zoo and Wildlife Research at the Freie Universität Berlin is underway.

Scientists from the Leibniz Institute for Zoo and Wildlife Research (Leibniz-IZW) and the Prince of Songkla University in Thailand have demonstrated that Wrinkle-lipped free-tailed bats not only travels great distances, but also hunt at impressive altitudes of up to 1,600 metres above ground – the altitude at which many planthoppers fly, which are dreaded insect pests of rice plants. Conventional methods of pest control such as insecticides do not work at these altitudes. By restricting the spread of high-flying planthoppers, Wrinkle-lipped free-tailed bats make an important contribution to pest control and thus also to food security in South and East Asia. The article published in the scientific journal "Oecologia" therefore emphasises how important and valuable it is to protect this bat species.

Globally, tropical rain forests are among the most species-rich habitats and are therefore often prioritised in conservation efforts. A team of scientists from Viet Nam and Germany now show that the diversity of ground-dwelling mammals and birds in Nui Chua National Park (Viet Nam) is highest in semi-dry forest, the transitional habitat where dry and wet evergreen broadleaf forest habitats meet. These results highlight the conservation importance of habitat transition zones, the scientists write in a paper published in the journal “Biotropica”.

Night-time collisions with robotic lawnmowers are a significant animal welfare and conservation problem for hedgehogs as these often suffer serious or even fatal injuries. In order to make the operation of robotic lawnmowers hedgehog-safe, the Leibniz Institute for Zoo and Wildlife Research (Leibniz-IZW), the specialist crash test company CTS and the computer magazine c't are developing special hedgehog dummies and standardised tests to prevent fatal collisions. National and international experts will be discussing the latest developments in this project and many other topics related to hedgehog research, animal welfare and conservation at two conferences organised by the Leibniz-IZW in Berlin from January 16 to 19, 2025.