Articles tagged with Extinction
A major review of over 67,000 animal species found that targeted conservation efforts are helping to recover many species threatened with extinction. The study highlights both successes and the need for urgent action to address the global biodiversity crisis.
A study analyzed conservation actions for endangered species and found that targeted efforts have driven improvements in over 100 species. However, only half of assessed species have conservation actions in place, and roughly six times as many species have deteriorated in recent decades than have improved.
The Cuban blue-headed quail dove is an enigmatic bird species with a perplexing evolutionary history. Its DNA analysis reveals it to be more distinct from other doves than previously thought, dating back at least 50 million years.
Researchers used a novel approach to estimate megalodon's body length and shape, finding it closer in shape to a lemon shark or large whale. The study suggests the prehistoric predator may have reached about 80 feet in length and weighed an estimated 94 tons.
A new analysis reveals that nearly half of the genus Heliconia, a group of tropical plants related to birds-of-paradise and bananas, are threatened with extinction. Many imperiled plants are not found within protected areas or botanical gardens, making additional conservation action crucial.
A study on the desert rat-kangaroo's feeding habits could help focus search efforts and potentially 'resurrect' the species. The research, published in the Journal of Experimental Biology, found that the animal's skull is adapted for softer foods rather than harder ones.
A new study suggests that up to 70% of suitable habitats for the critically endangered whitefin swellshark will be lost over the next 75 years due to predicted ocean changes. The researchers believe that Australia's proactive conservation measures, such as marine protected areas, offer hope for the species' survival.
Scientists have released new high-quality genome sequences for two critically endangered pangolin species, revealing genetic vulnerabilities and extinction risks. The research provides essential information for rescue operations and focusing on the best ways to conserve these unique animals.
Researchers argue that rewilding productive farmland or forestry in industrialised nations with low biodiversity may do more harm than good on a planetary scale. Efforts to conserve nature can displace production to more biodiverse regions, leading to increased demand for commodities like red meat.
A new study estimates it would cost $15.6 billion per year for 30 years to prevent extinction for 99 of Australia's priority species, due to habitat destruction, invasive species, and climate change. The Australian Government has committed to reversing the decline of 110 priority species, but experts warn that urgent action is needed t...
Botanic gardens have reached peak capacity, hindering efforts to gather plant diversity for study and protection. Despite accelerated rates of extinction risk, institutions struggle to conserve threatened plants within collections globally.
A team of researchers from Florida Atlantic University, San Diego Natural History Museum, and SeaWorld San Diego collaborate to digitize a rare vaquita skeleton, providing a valuable resource for conservation efforts. The scans resulted in three terabytes of data and will be used to create replicas for public display and education.
The creation of more fox-free safe havens is crucial to ensure the survival of the Parma wallaby. The species faces threats from fox predation, bushfires, and habitat loss, highlighting the need for greater collaboration between government and landowners.
Research found that 14% of Ecuadorian Amazon tree species are critically endangered, while 47% are endangered, primarily due to declines in animal species that disperse their fruits. The study highlights the importance of incorporating ecological traits into extinction risk estimates.
A new study has uncovered a rare plant fossil with unusual flowers, fruits, and stems that does not belong to any living family or genus. The discovery suggests there may be more diversity in the fossil record of flowering plants than previously recognized.
A new study reveals that overfishing has caused chondrichthyan fish populations to decline by more than 50% since 1970. The risk of extinction for these species has increased by 19%, with the largest species facing elimination of up to 22% of ecological functions.
A new study estimates that more than 9,000 invertebrates, including pollinators and earthworms, have become extinct in Australia since European arrival. The study suggests that many species remain at high risk of extinction due to habitat loss and climate change.
Research from Washington University in St. Louis found that bird wing shape is a key factor shaping biodiversity patterns on islands worldwide. The study revealed how birds' dispersal abilities influence the number of species found on islands, with low-dispersal birds leading to steep species-area relationships.
Researchers found that birds endemic to islands, lacking flight, and with large bodies and sharply angled wings were more likely to disappear first. The study analyzed 216 bird extinctions since 1500 and identified traits that correlate with extinction timing.
A recent assessment has classified almost 1 in 3 Atlantic reef-building coral species as Critically Endangered due to the combined effects of climate change and other environmental factors. This increased threat level highlights the urgent need for conservation efforts to protect these vital ecosystems.
A recent study highlights that over one-third of Vietnam's 329 mammal species are threatened with extinction, with around 40% lacking ex situ conservation programs. Iconic species like the saola and silver-backed chevrotain are among those at risk.
Researchers from Tohoku University and partners developed a decentralized control system to analyze plesiosaur locomotion, accounting for motion adjustment. The system successfully recreated coordinated flippers patterns in response to changes in flapping cycle and morphology.
The study reveals large genomic differences between European aurochs, North Asian aurochs, and South Asian ancestor, with evidence of human intentional feeding and targeted domestication. The genome of the central European aurochs was fully decoded for the first time, providing insights into the history of wild cattle in Europe and Asia.
A fossilized leg bone of a massive terror bird, found in Colombia, provides new information about the region's wildlife during the Miocene epoch. The discovery suggests that this bird species was relatively uncommon among other animals in the area.
A new parasite, Pachysentis canicola, has been discovered on the Channel Island fox, causing severe intestinal damage and inflammation in infected individuals. The study highlights the importance of biosecurity in the Channel Islands National Park and underscores the impact of human activity on isolated ecosystems.
The discovery sheds light on early human behavior and diet in India, providing the first direct evidence of humans feeding on large animals. The fossils belong to an extinct genus of elephants called Palaeoloxodon, with only one set of bones found previously.
A new study has revealed that 90 species of plants from the Centinela range were not extinct as previously thought. The researchers found abundant evidence of the flora's presence in remaining forest fragments and discovered over 50 new plant species, including eight newly described species.
A team of scientists studied the Kashmir skull and found it to be a distinct species from other known Eurasian Palaeoloxodon. The research suggests that Palaeoloxodon turkmenicus represents a poorly-known missing link in the evolution of these prehistoric megaherbivores.
Dragonfly species with darker wing coloration have evolved to tolerate higher temperatures, possibly a decisive advantage in a warming world. This finding could help predict which species are vulnerable to extinction and preserve biodiversity.
The painting in the La Belle France cave is believed to be the world's oldest known piece of paleo-art depicting an extinct mammal-like reptile called a dicynodont. The San people were engaging in palaeontology long before Western scientists, and their artwork provides compelling evidence of this.
A new study reveals the true global impact of human-induced species loss is far greater than previously thought, resulting in a loss of approximately 3 billion years of unique evolutionary history. This extinction crisis has severe consequences on ecosystem function, including reduced pollination, seed dispersal, and disease outbreaks.
Researchers discovered a cache of rare monkey fossils in the Dominican Republic, providing new insights into the anatomy and ecology of the extinct Antillothrix bernensis. The study suggests that male and female monkeys were monomorphic and weighed up to five pounds, with a diet mainly consisting of fruit.
In Dominica, Hurricane Maria killed most Purple-throated caribs, allowing other birds to pollinate heliconia plants. Researchers found that specialized pollination systems can become generalized after natural disturbances, showing resilience in ecosystems.
A new study suggests that altering coral feeding habits could aid their recovery from bleaching events caused by rising ocean temperatures and acidification. Feeding corals zooplankton after a bleaching event improved their resilience to warming temperatures, promoting growth and enhancing recovery rates.
A new study of 21,000 marine animals reveals that even pristine habitats are at risk due to human activities and climate change. The research highlights the impact of cumulative human stressors on global marine fauna, emphasizing the need for targeted conservation efforts.
A new study reveals that palaeolithic hunter-gatherers on Cyprus are responsible for the disappearance of two species of megafauna: dwarf elephants and hippos. The research suggests that these small human populations could have driven both species to extinction due to their hunting practices.
Climate scientists have proposed a new approach to conserve vulnerable ecosystems, focusing on sites with favorable weather conditions. The 'climate-change refugia' concept aims to reduce species extinctions by identifying and protecting areas least impacted by changing weather.
A fossilized Neanderthal, nicknamed 'Thorin', lived in a small isolated community for over 50,000 years before the species' extinction. The discovery reveals two distinct Neanderthal populations coexisted without exchanging genes, challenging previous assumptions about their population structure.
The kākāpō evolved two color types to avoid detection by Haast's eagle and Eyles' harrier. Genome sequencing shows olive feather coloration emerged around 1.93 million years ago, coinciding with the evolution of these predators.
Conservation efforts focused on 25 EDGE Zones could protect one-third of threatened and unique tetrapod species. The study identifies areas with high levels of evolutionary distinctiveness and global endangerment as key to saving these species.
Vultures, like young humans, explore new sites and socialize frequently when they're young. However, as they age from around 10 years old, they scale back on socializing and prefer to stay at the same roosting site, similar to humans who tend to stay home.
Researchers from the University of Southampton have reviewed 400 years of scientific literature to correctly classify the Dodo and its closest relative. The study confirms that both birds were members of the columbid family and challenges common misconceptions about their extinction.
Researchers identify accessory genes linked to nitric oxide production that contribute to Foc TR4's virulence, offering potential treatments and strategies to slow its spread. Monocropping is also identified as a key factor in the disease's success, highlighting the importance of crop diversity.
Experts provide clarity on key species elements of Goal A and Target 4, emphasizing the need for urgent focused actions to halt extinctions. The study aims to support Parties in updating their National Biodiversity Strategies and Action Plans by clarifying implementation needs.
A recent study by Brown University biologists reveals that even small variations in temperature and moisture can have massive impacts on tropical epiphyte species, threatening ecosystems they support. The research found that most species struggled to survive outside their native ranges in climate conditions differing from what they typ...
A study published in PLOS ONE found cut marks on fossils of a glyptodont, a giant relative of armadillos, that are consistent with known marks made by stone tools. The placement of these marks indicates a butchering sequence targeting areas of dense flesh.
The Key Largo tree cactus has been declared extinct in the US due to sea level rise, with saltwater intrusion and soil depletion causing significant pressure on its limited population. Researchers have salvaged fragments of the plant to cultivate it off-site for conservation.
A recent study finds semi-natural habitats play a crucial role in conserving pollinator diversity, outpacing the impact of pesticide use. The research suggests that prioritizing habitat conservation can be more effective than reducing pesticide application in rice fields.
Researchers from Aarhus University conclude that human hunting was responsible for the extinction of at least 161 species of large mammals over the past 50,000 years. The analysis of various research fields, including climate history and genetic estimates, suggests that human hunting was widespread and consistent across the world.
A new study using museum collections reveals that ammonites were diverse and thriving across the globe just before their extinction in the Late Cretaceous. The research found that the balance of speciation and extinction rates varied by region, contradicting previous theories.
A genomic analysis of last surviving woolly mammoths on Wrangel Island reveals signs of inbreeding and low genetic diversity, contradicting the idea that they were doomed to extinction. The research suggests that a random event likely led to their demise.
Conservationists and researchers propose preserving just 1.22% of the Earth's surface to protect threatened species from extinction, safeguarding wildlife for future generations. Protecting these sites could cost around $34 billion per year, but represents less than 0.2% of US GDP.
Researchers identified 16,825 Conservation Imperatives covering 164 Mha, which could prevent all predicted extinctions if adequately protected. Protecting these sites would cost approximately $34 billion per year and represent less than 0.2% of the US GDP.
Researchers have identified over 3,700 species threatened by natural disasters, highlighting the urgent need for conservation efforts. The study suggests strategies such as captive breeding programs and translocation to prevent extinctions.
Researchers found sharks maintained high levels of functional diversity for most of the Cenozoic era before declining over the last 10 million years. The decline is attributed to the loss of ecologically unique species, including the megalodon, a key apex predator.
Despite improved molecular methods, trade in endangered sharks and rays has continued to rise, with 83% of detected species considered at risk of extinction. Research reveals that DNA sequencing techniques have become more cost-effective but failed to reduce the extent of species threats.
Researchers used computer modeling and ancient DNA to discover sustained hunting by humans prevented woolly rhinoceros from accessing favorable habitats. The study reveals how climate change and human activities can lead to megafauna extinctions, with lessons for safeguarding Earth's remaining large animals.
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 used novel biomolecular methods to analyze fossil bone fragments at the Smithsonian Museum, revealing excellent preservation of collagen proteins that can provide a molecular barcode for identification. The study provides new insights into the mysterious disappearance of North America's large mammals 50,000 years ago.
A 6-centimeter-wide fossil of a large cat species, Homotherium, was discovered on the Texas coast. The fossil provided key evidence for the cat's expansion across habitats in Africa, Eurasia, and the Americas.