A new study reveals that antibiotic resistance genes can be detected in wild mice on farms, with 50% of genes found in cattle also present in mice. Environmental factors and livestock farming intensity play a greater role in determining resistance genes than the mice's characteristics.
Spotted hyena females show greater reproductive inequality than males due to social rank inheritance, benefiting high-ranking females' offspring. This pattern is reversed when considering grandchildren and great-grandchildren, with females demonstrating greater inequality.
A machine learning approach improves how roaring behaviour can be studied by detecting long-distance roaring based solely on acceleration data. The algorithm works reliably with both male and female lions, even with mixed signals when walking while roaring.
A new Northern White Rhino embryo has been successfully produced, boosting hopes for the species' survival. The BioRescue Consortium's work has also underscored the importance of public engagement, communication, and ethical reflection in wildlife conservation.
A recent study found that public perceptions of Assisted Reproductive Technologies (ART) in wildlife conservation differ across EU countries. While respondents generally accepted ART as a complementary strategy to address biodiversity loss, there was variation in attitudes towards innovative approaches. The study highlighted the import...
A meta-study of 213 scientific studies found that climate change influences seasonal developmental processes, allowing populations to remain stable or increase in numbers. However, the study also identified maladaptation to climate change in some cases, with inconsistent effects on body measurements and population growth rates.
Researchers analyzed the genome of over 100 koalas and found that two retroviruses are causing cancer deaths. They also discovered that some Koala Retrovirus (KoRV) integrations may be beneficial to koala health, increasing longevity or reproductive output.
A new study found that common noctules hunt disproportionately often in combination with near-natural habitats to find sufficient prey in intensively farmed landscapes. The bats prefer small remnants of these habitats, such as grasslands and water bodies, which contain higher insect biomass due to lower pesticide use.
The study reveals lower genetic diversity and historical population sizes in the Southern Maned Sloth, while the Northern lineage faces rapid inbreeding due to deforestation. The findings offer critical insights for conservation of endangered species.
Spanish photographer Jon A Juárez's winning photo documents the world's first successful embryo transfer in southern white rhinos, offering renewed hope for saving its critically endangered northern relative. The successful transfer was a proof of concept allowing to safely move to the transfer of northern white rhino embryos.
In a study published in PNAS, scientists found that common noctule bats reduce echolocation calls when hunting in brighter environments but catch prey up to 50% faster. The bats use both acoustic and visual information to track and catch escaping prey during split-second interactions.
The BioRescue consortium has produced 38 pure northern white rhino embryos, including three new ones, and initiated embryo transfers with southern white rhino mothers. The team is using cutting-edge assisted reproduction and stem cell technologies to restore the species.
Leisler's bats are shifting from forest habitats to urban areas and settlements due to forest management practices. The study highlights the importance of preserving old trees and structurally rich forests to support bat populations, with recommendations for sustainable forestry practices and protected green spaces.
Researchers discovered Asian elephants have significantly heavier brains, weighing 5,300 grams on average, compared to 4,400 grams in African elephants. Elephant brains grow almost as much as human brains after birth, with a threefold increase in weight by adulthood.
A new study predicts that common noctule bats' hibernation areas will shift northeastward by up to 14% by 2100 due to warmer winters. The model accurately tracks the northward range shift of this species over the past 50 years, driven by shorter and warmer winters in Europe.
Research reveals that infected starlings have limited access to high-quality foraging habitats, leading to poorer physical condition and lower chances of survival in their young. Infected birds spent less time foraging and were more picky in their choice of habitats, resulting in 12% lighter offspring.
Scientists have found that Wrinkle-lipped free-tailed bats hunt at altitudes of up to 1,600m, restricting the spread of high-flying planthoppers. This crucial contribution to pest control and food security is attributed to the bat's impressive foraging range of up to 1,743km².
The study highlights the importance of semi-dry forests in Nui Chua NP, which have the highest diversity and occupancy of the silver-backed chevrotain. Conservation efforts should prioritize these transitional habitats to protect this flagship species.
New dummies and tests aim to reduce hedgehog fatalities in robotic lawnmower crashes. A ban on night-time use is also seen as a promising solution to protect these animals.
The study found that wind turbines hinder the ability of bat species to access drinking sites, particularly during hot and dry summers. This can lead to reduced survival rates among female bats and their young, highlighting the need for careful consideration in wind turbine siting to avoid conflicting with species conservation.
The BioRescue team has made significant progress in producing northern white rhino embryos, with five new embryos produced in the second half of 2024. The team's advanced assisted reproduction technologies have shown to be safe and reliable for donor females, yielding viable embryos.
Red squirrels adapt their diurnal activities to minimize predation risk from domestic cats, while avoiding humans and wildlife. During COVID-19 lockdowns, they increased activity in gardens with food sources.
The GAIA Initiative uses AI algorithms to classify white-backed vulture behaviors and automatically locate carcasses, providing an early warning system for environmental changes. By combining animal tag data with artificial intelligence, scientists can quickly recognize critical incidents like droughts or disease outbreaks.
Swallow populations infected with parasites exhibit altered movement patterns, including reduced home ranges and foraging activity. This can lead to decreased foraging success and increased mortality rates.
The German wolf population boasts the world's highest survival rates of wolves, with young wolves reaching 75% annual survival probability. The expansion is attributed to suitable habitats and protection, leading to a median survival time of three years.
The European Reference Genome Atlas pilot project successfully assembled high-quality reference genomes for 98 European species, including the Cretan wall lizard and Aristotle's catfish. These genomes will enable scientists to make accurate assessments of endangered species' genetic status and inform conservation actions.
The BioRescue team evaluated ethical considerations for biobanking, including animal welfare, sample ownership, and good scientific practice. It introduced a modified ETHAS tool to provide a structured approach for biobank managers, enabling them to make wise decisions on conservation and research.
Intensive wire snare removal efforts reduced snaring by almost 40% in protected areas of Viet Nam, according to an 11-year study. The effectiveness of snare removal was mainly achieved within the first 6 years, but its impact alone is unlikely to protect wildlife due to ongoing snaring threats.
Researchers found that social status is reflected in epigenetic signatures, including DNA methylation patterns, in juvenile and adult free-ranging spotted hyenas. These patterns are linked to important physiological processes such as energy conversion and immune response.
Scientists from the Leibniz Institute for Zoo and Wildlife Research observed spotted hyenas chasing and devouring flying birds at a waterhole in Namibia. They found that a single hyena can catch one bird every three minutes, adding to the known variety of their diet and hunting tactics.
Researchers have discovered a rare case of retrovirus integration in a rodent from New Guinea, revealing a new model for virus colonization. The white-bellied mosaic-tailed rat's genome contains the 'complete Melomys woolly monkey virus', which has characteristics of both exogenous and endogenous viruses.
A study of 370 documented cases found that almost half of hedgehogs injured by electric gardening tools did not survive. The data also show a growing conservation problem due to declining hedgehog populations in Germany.
A recent study by Leibniz-IZW and Philipps-Universität Marburg found that forest bats reduce their activity by 77% within a radius of 80-450 meters around operational wind turbines. The researchers suggest noise emission from turbine rotors is the primary cause of this avoidance behavior.
A team of scientists from the Leibniz Institute for Zoo and Wildlife Research found that grey wolves' habitat selection changes during recolonization in Germany, moving from early-stage 'cherry-picking' to late-stage less-selective choices. This shift affects predictions of wolf distribution and expansion in the country.
The BioRescue project evaluated 65 advanced assisted reproduction procedures in white rhinos, showing the technology is safe for donor females and yields successful embryo generation. Regular OPUs improve reproductive health in individual female rhinos.
A study by Charité and Leibniz-IZW found that reducing biodiversity in rainforests leads to an increase in virus prevalence among mosquito species. This is because resilient species thrive in disturbed habitats, carrying viruses with them. The research reveals the importance of biodiversity in understanding infectious disease dynamics.
The war in Ukraine has severe consequences for urban wildlife, with 45.1% of Common Noctule bat wintering roosts destroyed or damaged by shelling. This led to the direct killing of approximately 7,000 bats and entrapment of thousands more.
The BioRescue project has made significant progress in creating cryopreserved northern white rhino embryos, with a recent collection yielding five new embryos. The consortium is also identifying and selecting wild southern white rhino females as potential surrogate mothers to support the breeding efforts.
A research team at Leibniz-IZW identified molecular markers for testicular cell types in domestic cats and four wild feline species, allowing for the clear identification of Leydig and Sertoli cells, spermatogonia, and advanced germ cell stages. This breakthrough enables the maturation process of male germ cells in vitro.
African rhinos have dozens of gammaretroviruses in their genomes absent from Asian rhino species. The viruses are closely related to rodent viruses and suggest that African rhinos were infected by an exogenous viral variant, leading to genome colonization.
The reintroduction of cheetahs to Kuno National Park in India faces challenges due to the park's small size and high prey density. Scientists warn that the released animals may move far beyond the park's boundaries, causing conflicts with villagers.
A long-term study reveals that the risk of fatal collisions between vehicles and spotted hyenas in the Serengeti is influenced by road characteristics and the annual migration of large ungulate herds. Adult females are most frequently run over, likely due to their regular travel distances between dens and migrating prey herds.
Researchers have created detailed genetic maps of green and leatherback sea turtle genomes, providing insights into their unique adaptations and evolutionary history. The study reveals that genetic differences between the two species are mainly found on microchromosomes, which may hold the key to each species' survival.
Scientists used CT scans to analyze unopened expedition crates from the Tendaguru dinosaur site, revealing numerous dinosaur bones, including those of Dysalotosaurus lettowvorbecki. The images also provide a valuable testimony of the historic expedition and colonial context.
The European Northern Bald Ibis population is well on its way to self-sustainability, thanks to a successful reintroduction project that began over 20 years ago. With good survival and reproduction rates, the population has demonstrated positive future survival probabilities, even in the face of catastrophes.
A study found that wind turbines in forests cause common noctules, a threatened bat species, to collide with blades and lose foraging space. The researchers recommend building turbines at least 500 meters away from roosts and compensating for lost habitats elsewhere.
The study reveals diverse retroviruses in mouse lemurs, closely related to viruses in polar bears and domestic sheep, suggesting ancient infections. The discovery of endogenous retroviruses in these species provides new insights into the complex history of retroviral transmission among mammals.
Spotted hyenas show that twin brothers and buddies from the same birth group very often disperse together to breed. This coordination is likely due to similar preferences and social backgrounds. The frequent joint dispersal among twins and buddies has major consequences for understanding social dynamics and gene flow in wild populations.
A new study reveals that bat diversity is highest in old deciduous forest stands on river banks in Eastern Ukraine. The research found that mature forests older than 90 years improve breeding activity and abundance of bats, with species richness increasing up to 22% of all forests in the region.
Scientists have successfully created primordial germ cell-like cells (PGCLSs) from induced pluripotent stem cells of the northern white rhino Nabire, paving the way to produce artificial gametes. This breakthrough aims to prevent the extinction of the northern white rhinoceros and increase genetic diversity.