Researchers have discovered a key breeding ground for endangered sand tiger sharks off the coast of São Paulo, Brazil. The Alcatrazes Archipelago Wildlife Refuge provides a vital sanctuary for the critically endangered species, allowing them to complete their reproductive cycle in Brazilian waters.
Researchers from Guizhou Province have successfully assembled the first haplotype-resolved chromosome-level genome of Phoebe zhennan, a critically endangered tree species. The high-quality reference genome reveals significant genetic variations, including inversions and translocations, that may play key roles in environmental adaptation.
A new study uses machine learning to predict chemical toxicity in rare and endangered species, reducing the need for direct biological testing. The model achieved strong performance predicting acute and chronic toxicity, with life stage being a key factor.
Researchers found that colossal karst sinkholes help preserve the rare Magnolia aromatica tree while limiting gene flow and diminishing its long-term evolutionary potential. The study suggests that conservation strategies should protect both individual habitats and connections among populations.
Researchers found that nearly 90% of sharks collected from Delaware Bay were exported overseas, raising concerns about conservation goals. The study highlights the need for better scientific data and stronger oversight to ensure sustainable removals of critically endangered sand tiger sharks.
Ayano Medo and Takuya Sato discovered that nematomorph parasites induce terrestrial crickets to jump into water, where they nourish endangered fish. The parasites, common globally, drive the transfer of long-chain omega-3 fatty acids from terrestrial to aquatic ecosystems.
Researchers found that Bigg's killer whales are increasingly present in Puget Sound, while southern resident killer whales are spending less time in inland waters. The data suggests that social cues may play a role in the changing distribution of southern residents.
Researchers analyzed 44 years of killer whale data in Washington state, finding a decline in the presence of endangered fish-eating killer whales. In contrast, populations of Bigg's killer whales, which prey on seals and other whales, are becoming more abundant.
Researchers captured cultural evolution of new dialects in sperm whales living in eastern Mediterranean. Whales developed a new form of vocal dialect used by western basin animals, showing progressive occupation from west to east.
Researchers found that pregnant Pacific pocket mice trained to fear snakes produce more vigilant offspring, which survive better in the wild. This method of antipredator training may improve conservation breeding and reintroduction programs.
A Simon Fraser University study found over 200 contaminants in juvenile Chinook salmon in the Lower Fraser River estuary, including priority contaminants like pharmaceuticals and pesticides. This exposure adds stress to already vulnerable fish populations.
A new acoustic device, PAL Wideband pinger, has been found to reduce harbour porpoise bycatch in the Black Sea by approximately 74%. The device's wider frequency band (10-150 kHz) is believed to contribute to its effectiveness. Effective strategies to reduce bycatch are urgently needed for the critically endangered species.
A global inventory reveals that bottom trawling catches over 3,000 fish species, including critically endangered and vulnerable species, highlighting the urgent need for better documentation and management of its impacts on marine biodiversity.
Researchers at Virginia Tech used modern data science to guide restoration strategies for the endangered butternut tree. The study mapped climate and soil conditions linked to natural disease resistance, identifying prime regions for resistant butternut trees and hybrids across the eastern United States.
A new Simon Fraser University research reveals that thousands of British Columbia's endangered species are not receiving the necessary help to survive. The study found that only a few species have shown signs of recovery since 2008, while many more are declining due to lack of legislative protection.
A global citizen-science study found that humans tend to prefer many animal sounds favored by the species themselves, suggesting a shared aesthetic judgment. The study also showed that lower-pitched sounds are preferred by humans, with some variation in alignment across individuals.
Researchers found juvenile smalltooth sawfish showing strong site fidelity to the South Fork of the Saint Lucie River, spending up to 87% of their time within a 0.4 square kilometer area. This suggests that the Indian River Lagoon is once again functioning as a nursery for this endangered species.
Researchers have identified detectable 'early warning signals' in genetic data that can alert conservationists to an approaching crisis before it becomes irreversible. The findings provide a new tool for protecting endangered species by monitoring genetic changes in populations and identifying early warning signs.
A recent study analyzing koala genomes found that populations previously considered most at risk are now showing signs of genetic regeneration. The research, published in Science, challenges long-held assumptions about genetic risk in endangered species.
Research reveals that liquid crystal monomers from household electronics accumulate in the brains of endangered dolphins and porpoises. The chemicals have been linked to altered gene activity and potentially negative impacts on marine mammals.
A new study published in Global Ecology and Conservation found that released animals, like Bengal slow lorises, are at risk of being attacked by territorial peers. Only two out of nine released animals survived, with the others dying due to fatal attacks.
A computer model identifies potential threats to over 10,000 freshwater species worldwide, offering a cost-effective way to safeguard species before they become endangered. The tool analyzes 52 variables, including damming, pollution, and habitat degradation, to recognize ecological patterns that benefit multiple species at once.
A sweeping 10-year fishing ban on China's Yangtze River has halted 70 years of freshwater biodiversity decline. The ban, coupled with improved water quality and environmental management, has led to a significant increase in fish biomass and the recovery of endangered species.
A study analyzing data from Berlin's Flora Protection Program found that biological threats, especially from highly competitive native species, pose a greater threat to urban biodiversity than non-native species. Threats related to agriculture, nutrient inputs, and urban development are also significant drivers of decline.
A study by University of Florida researchers found that mosquitoes fed on 86 different species of animals, capturing nearly all the vertebrate biodiversity in a small area in central Florida. This innovative method uses mosquitoes to monitor other animals and conserve them.
Researchers found a robust and healthy population of critically endangered Sumatran tigers in the Leuser ecosystem, with over 282 high-quality images captured. The team identified 27 individuals, including females with high densities indicating a thriving social system and adequate habitats.
Scientists have discovered a new, critically endangered plant species, Thismia selangorensis, with fewer than 20 individuals known to exist. The species is found in undisturbed forests rich in leaf litter and relies on fungi for nutrition.
A new study found that Critically Endangered African penguins are more likely to forage in areas with commercial fishing vessels during years of low fish abundance, increasing competition and pressure on the species. The research introduces a novel metric called
A new study by UH Mānoa-Led research revealed 25 distinct underwater vocalizations in Hawaiian monk seals, including a previously undocumented foraging call and a novel 'combinational' communication strategy. The findings provide a baseline for understanding the acoustic world of this endangered species.
A new native bee species named Megachile (Hackeriapis) lucifer has been discovered in the Bremer Range region of Western Australia. The striking bee was found visiting both an endangered wildflower and a nearby mallee tree, and its discovery highlights the importance of understanding native bees before their habitats are disturbed.
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.
A groundbreaking environmental DNA test developed by Florida International University scientist Diego Cardeñosa can detect traces of elusive hammerhead sharks in water samples. The test reveals fragments of genetic material left behind in the ocean, identifying areas where the sharks have been and informing conservation efforts.
New research reveals American giraffe collections have been hybridized across species, reducing their conservation value. The study recommends phasing out hybridized animals from captive breeding programs and screening existing animals for better genetic matches.
A new study reveals that climate change is driving many native Australian reptiles toward extinction. The research uses fossil evidence and genetic data to show how the endangered Australian Mountain Dragon has responded to major environmental changes in the past.
Research analyzing over half a million social media posts found that charismatic animals like cats and hippos generated the highest engagement. Meanwhile, plants, which comprise 57% of endangered species, received disproportionately limited attention in online discourse.
The 2023 marine heatwave caused widespread coral mortality in Florida's Coral Reef, leading to the functional extinction of critically endangered Acropora species. Researchers found that between 97.8 and 100% of coral colonies had died by March 2024, highlighting the urgent need for interventions to maintain these populations.
Researchers have discovered microplastics in the endangered Indus River dolphin, finding fibers and other particles in the GI tracts of all five stranded individuals. The study highlights the urgent need for conservation strategies to address this pollution issue.
A new study reveals that 93% of shark meat products in the US are ambiguously labeled and may contain meat from critically endangered species. The findings highlight a need for stronger regulations and oversight of seafood labeling practices to protect consumers and conserve shark populations.
A study found that 31% of 'shark' products in the US are from endangered species, sold without proper labeling. The research used DNA barcoding to identify species, revealing critically endangered sharks were being sold as common or vulnerable species.
Researchers have uncovered a new species of bettong and two new subspecies of woylie in Western Australia, revealing vital clues about the diversity of these critically endangered marsupials. The discovery has significant implications for conservation efforts, including breeding and translocation initiatives.
A new study found that when Hanauma Bay was closed to the public during the 2020 pandemic, the reef quickly returned to more natural levels. This led to clearer water, increased sightings of endangered Hawaiian monk seals, and more active fish populations.
A genetic test developed by Dr Lauren Lansdowne can reliably determine the species of individual gibbons, helping to preserve vulnerable populations. The test uses DNA sequencing and has been validated using large-scale samples from over 200 gibbons in European zoos.
Researchers discovered a large population of critically endangered Plains-wanderers in South Australia's arid interior, defying their previously believed habitat preference. The birds were found to select low-growing shrublands with specific composition over dense native grasslands.
The Illinois Natural History Survey and Illinois Department of Natural Resources have updated the state's threatened and endangered plant species rankings. A total of 331 plants were reassessed, showing some improvements in their status, while others remain imperiled.
A study found that the red-headed wood pigeon's unique genetic history, shaped by centuries of gradual inbreeding, enabled its population to survive and rebound dramatically. The team's analysis revealed lower levels of highly deleterious mutations in the endangered species compared to the more widespread Japanese wood pigeon.
A new study suggests that genetic rescue of endangered species may not be as effective as previously thought, and could even introduce more harmful mutations. Analysis of Eastern massasauga rattlesnakes found more deleterious than adaptive mutations in donor animals selected for relocation.
A large-scale study found that zoos are often breeding endangered animals in skewed sex ratios, which can limit genetic diversity and increase the risk of extinction. The research highlights the need for zoos to collaborate and share data on their animal populations to manage conservation efforts effectively.
The latest Osiris volume examines how animals have influenced human knowledge production and shaped the natural world. Studies on animal agency, individual animals, groupings, and technological systems reveal new insights into historical scientific inquiry.
A recent MIT study found that decreases in seed-dispersing animals can lead to a major reduction in forest carbon absorption. The researchers analyzed data from thousands of vegetation plots and found that healthy populations of seed-dispersing animals can absorb up to four times more carbon than similar forests with fewer animals.
Researchers found that translocations of red-cockaded woodpeckers into the Avon Park range led to substantial population growth and improved genetic health. The study suggests that this conservation strategy can be a promising approach for other threatened species.
A new study by Dr. Gila Kahila Bar-Gal presents an integrative approach to wildlife forensics, combining advanced genetic tools with local databases to solve complex environmental crimes involving multiple species. This method demonstrates the ability to identify species, trace their origins, and confirm criminal activity beyond reason...
A new study warns of the dangers of human interactions with wildlife, particularly feeding wild animals, which can lead to habituation and dangerous encounters. The research found that provisioning food to wild animals can cause them to become bolder and more prone to causing problems.
A team of scientists proposes using gene editing to restore lost genetic diversity in endangered species, enabling them to adapt to future environmental changes. The approach could complement traditional conservation methods and attract new investors and expertise.
Research reveals that warming seas are changing mating routines of critically endangered female angelsharks, prioritizing staying cool over visiting breeding grounds. This mismatch in behavior could have severe consequences for the species' future.
Research reveals that endangered longleaf pine ecosystems face mounting threats from intensifying hurricanes driven by climate change. The study calls for adaptive management and sustainable practices to mitigate the impact of tropical cyclones on these critical ecosystems.
A new study reveals smaller islands in Wallacea are critical refuges for endangered mammals, with lower genetic diversity but fewer harmful mutations. Habitat quality on these islands is higher than on larger ones, emphasizing the importance of protecting them for long-term survival.
A new study from the University of Alberta found that endangered mountain caribou possess a unique gut microbiome in late winter, when they feed on tree lichens. This specialized diet and associated microbes could guide caribou recovery efforts and highlight the importance of maintaining oldgrowth forests to support their food supply.
The Nature FIRST project, a £4.9m Horizon Europe-funded initiative, aims to protect endangered species and their habitats across Europe. The project's tools and training will help rangers detect and respond to wildlife crime and other threats using digital technologies and forensic investigation techniques.
A new genomic study offers a unique lens for understanding the extinction crisis in Hawai'i, revealing that there is still time to save the critically endangered honeycreeper 'akeke'e. With only 17 species of iconic honeycreepers remaining, efforts to control mosquito populations and conservation breeding programs are underway.