Articles tagged with Natural History
Researchers built a phylogenetic tree based on DNA from newly collected anemone specimens to fill gaps in the origin of these species. They found that as a group, anemones independently evolved the ability to host clownfish three times throughout history, with two groups originating in the Tethys Sea.
Researchers found zebras' black and white stripes create a temperature difference that increases as the day heats up. The strips aid in heat loss through evaporation and convection currents.
A recent study has found that mites and ticks belong to the same evolutionary lineage, with over 42,000 mite species and 12,000 tick species described. This discovery expands our understanding of arthropod biodiversity and highlights the importance of genomic data in clarifying long-standing debates.
A new species of extinct sea cucumber named Sollasina cthulhu has been discovered, revealing a monstrous relative of modern sea cucumbers with long tentacles and an inner ring-like form. The fossil, 430 million years old, provides crucial information on the evolution of soft-bodied creatures.
Researchers have uncovered three new species and subspecies of ancient mammals that once roamed the Cayman Islands. These mammals, including large rodents and a shrew-like creature, are believed to have gone extinct due to human arrival and introduced species.
A new study led by UCL and NHM found that bird skull shape is more influenced by shared ancestry and behavior than diet. Researchers tested 352 bird species, representing 159 out of 195 existing families, and discovered that birds who eat nectar or seeds exhibit the highest rate of cranial evolution.
The Harvard Museum of Natural History announces a new Climate Change exhibit featuring multimedia displays, interactive stations, and real-time ocean monitoring data. The exhibit aims to educate visitors about the global impacts of climate change and provide solutions for reducing fossil fuel emissions.
A new Central American butterfly species, Catasticta sibyllae, has been named after Maria Sibylla Merian in recognition of her groundbreaking work on the metamorphosis of butterflies and moths. Merian's discoveries, made centuries ahead of her time, were instrumental in changing the course of entomology.
A 33-million-year-old fossil whale named Maiabalaena from Oregon had neither teeth nor baleen, challenging previous assumptions about the evolutionary origin of these structures. The discovery provides new insights into the feeding habits of early whales and sheds light on the complex evolution of whale species.
Analysis of ancient DNA from an extinct Jamaican monkey named Xenothrix has revealed its surprising connection to South America's titi monkeys. The study shows that island colonization can dramatically impact animal evolution, leading to unique characteristics like slow movement and few teeth.
Researchers at Yale University discovered that birds inherited their egg color from non-avian dinosaur ancestors that laid eggs in fully or partially open nests. The findings suggest that egg colors evolved to camouflage eggs from predators and parasites.
Researchers estimate only 3-4% of recorded fossil locations are documented in published literature, highlighting the need for museums to invest in digital preservation. The EPICC database compiles marine invertebrate fossils from the eastern Pacific, providing a vast resource for scientists.
A new plant species, Thismia kobensis, has been identified from a preserved specimen in a Japanese museum. The discovery suggests that this species may be extinct, as it was reported as extinct by Hyogo prefecture in 2010.
Researchers will develop AR experiences varying in visual immersion and interactivity to understand their impact on learning and engagement. The project aims to dispel misconceptions using AR to provide additional information about the Tar Pits' history and discoveries.
The study reveals 21 new parasitoid wasp species, updating the genus count to 27 and providing a systematic revision. The wasps' unique characteristics, such as large size and vivid coloration, suggest they likely parasitize orthopterans like grasshoppers and crickets.
Arizona State University will receive biological samples from 81 field sites across the US for 30 years, providing long-term ecological data. The NEON Biorepository Data Portal will make detailed information available online.
Researchers at the American Museum of Natural History have identified a unique enzyme responsible for the bioluminescence in Bermuda fireworms, which powers their dramatic mating display. The study also examines genes related to reproductive timing and changes in the animals' bodies before swarming events.
A new study found that moths with larger hindwings and longer tails have a higher chance of escaping bats due to their ability to deflect sonar. Researchers tested four different hindwing shapes in real-time dogfights between bats and moths, revealing that the larger the hindwings and longer the tails, the better the moths' chances.
The study uses DNA sequence data to analyze the evolution of testes in mammals, finding that African species lack the testicular descent process due to non-functional genes. This suggests that the testicular descent process was ancestral and lost in these species.
A new study challenges the long-held assumption that plant-eating mammals' diets can be determined by analyzing carbon isotopes in fossil teeth. The researchers found that the value of these isotope analyses changes with body size, leading to a more accurate understanding of extinct species and ecosystems.
A study identified 17 new genera and 29 new species of microgastrine wasps, including those named after Crocodile Dundee and Toblerone, published in the Journal of Hymenoptera Research. The discovery highlights the megadiverse fauna of these parasitoid wasps, with many more awaiting discovery.
The National Science Foundation has awarded a grant to the Natural History Museum of Utah and the College of Education at the University of Utah to develop an online learning environment for student learning in the biosciences. The project, EPIC Bioscience, will use digitized museum collections to provide middle school students with en...
Researchers have shed new light on the previously known geographical range of the extinct Carolina parakeet, a species officially declared extinct in 1920. The study provides unprecedented information on the bird's range and offers a window into its past ecology.
A new study explores the mouth of ancient crocodilians, shedding light on their evolution and behavior. The discovery of a closed secondary palate in early shartegosuchids, a group thought to be extinct, has significant implications for understanding the purpose of this feature in modern crocodiles.
Five new species of snakes, including four at risk of extinction, were found in Ecuador. The international research team auctioned their naming rights to save a 72 ha plot of land and expand the protected Buenaventura reserve.
Researchers have uncovered five new species of snail-eating snakes with peculiar dining habits, which are considered endangered or vulnerable due to habitat destruction. The study presents a new evolutionary tree for the diverse group of snail eaters in Central and South America.
Researchers compared bird and turtle genomes to determine dinosaur chromosome structure, revealing similarities with modern birds. The study's findings suggest that dinosaurs had a similar karyotype pattern as modern birds, contributing to their diversity.
Researchers have found a complete skull of the iconic toothed bird Ichthyornis dispar, providing new insights into its transitional features. The fossil reveals a modern-looking brain and a remarkably dinosaurian jaw muscle configuration.
Researchers from the San Diego Natural History Museum have rediscovered the San Quintin kangaroo rat in Baja California, partnering with a conservation plan to protect the endangered species. The discovery was made using traditional field techniques and live traps, and the rat has been found to persist in the Valle Tranquilo Nature Res...
A 1.5-foot-long fossil slab, misidentified twice, has been reinterpreted as a large cartilaginous fish with characteristics similar to sharks and rays. The study suggests the fish lived between 70-85 million years ago and expands the diversity of the Niobrara fauna.
A team of scientists found that species with strong male sexual dimorphism are more vulnerable to extinction due to increased energy investment in reproduction. They analyzed thousands of ancient crustacean fossils, including ostracods with distinct sex-specific shapes preserved in the fossil record.
A new study re-examines a 17th-century Scottish natural history book, revealing insights into the country's pre-industrial environmental change. The research, published in the Royal Society Journal of the History of Science, highlights Scotland's lost wildlife species and its ecosystem's preservation of ancient species.
Research at Finnish Museum of Natural History sheds light on great magma eruptions, revealing two contrasting sources: the upper mantle and a deep mantle plume. This study resolves long-standing controversies and presents an interesting new framework for future geological research.
Scientists have named a new butterfly species, Wahydra graslieae, after the Field Museum's chief curiosity correspondent Emily Graslie. The dark rust-colored skipper with silver scales is found in the Ecuadorian Andes and expands our understanding of the genus Wahydra diversity.
A new study confirms the value of iDNA methods in biodiversity surveys, identifying certain ground birds and bats for the first time. Leeches can be used to survey more rapidly and confidently identify small mammal species, making them an extremely useful tool for conservation purposes.
Two new genera of slugs, Fjordia and Gulenia, have been discovered by Norwegian divers, with one genus named after a dive resort and the other after its founder. The discovery is attributed to DNA analysis and citizen science efforts.
Researchers create biomechanical models to test how ecological factors like age at sexual maturity and average precipitation influence skull shape in carnivoran species. The study reveals that nondietary factors significantly impact both skull form and function, surpassing dietary influences.
Researchers have discovered that modern cheetahs possess a distinct vestibular system in their inner ear, which enhances sensitivity and rapid responses to head motions. This unique anatomy allows the cheetah to maintain its gaze locked on prey during high-speed hunts.
Researchers have discovered that brittle stars use thousands of light-sensitive cells in their skin to navigate complex environments. The team found these photoreceptors on the entire body surface and embedded them in the skin, challenging a long-held lens-based hypothesis.
A new study reveals that birds have advanced their breeding time, laying eggs on fields still to be sown, increasing the risk of nest destruction. This mismatch is likely fatal for bird nests, highlighting the need for conservation efforts and effective schemes like Agri-environment schemes.
A new ancient dolphin species, Urkudelphis chawpipacha, has been discovered in Ecuador, with a fossilized skull featuring distinctive facial features. The species is believed to be an ancestor of the nearly-extinct Platanistoidea, or river dolphin, and may have lived during the Oligocene era.
Scientists discovered tick fossils trapped in amber, providing direct evidence of ticks parasitizing dinosaurs. The ticks were found attached to a dinosaur feather and offered the first direct fossil evidence of ticks feeding on dinosaurs.
A new study reveals that extinct marine reptiles called sauropterygians evolved similar inner ear proportions to modern aquatic reptiles and mammals. The research found that nearshore sauropterygians had ears similar to those of crocodiles, while fully-aquatic plesiosaurs had ears similar to sea turtles.
A team of researchers discovered a female alligator snapping turtle in Clear Creek, Union County, Illinois, after 30 years of absence. The 22-pound, 15-inch long turtle is believed to be at least 18 years old and not one of the released turtles.
A new study analyzing the jaws of the extinct otter Siamogale melilutra found that its jaw bones were six times sturdier than expected, indicating a strong bite force. The discovery suggests that the massive otter may have been a top predator in its time, crushing shells and bones of birds and small mammals.
A new study reveals that mammals began living in the daytime approximately 66 million years ago, shortly after the dinosaurs' disappearance. The ancestors of simian primates were among the first to abandon nocturnal activity, with their visual adaptations comparable to diurnal reptiles and birds.
The Wellcome Trust Sanger Institute is sequencing 25 new UK species genomes to aid conservation and understand biodiversity. The results will be made publicly available and lead to future studies on the UK's rich species richness.
A study published in Biodiversity Data Journal uses deep learning techniques to differentiate between similar plant families with high accuracy. The researchers trained neural networks on digitized herbarium specimens, achieving up to 99% accuracy in distinguishing between two challenging species.
A new study suggests that standard ways of measuring well-being and sustainability in communities may be missing critical information, leading to missteps in management actions. The authors propose alternative approaches using indicators grounded in the values of a particular community.
Scientists have discovered a new species of jellyfish, the bay nettle jelly (Chrysaora chesapeakei), in the Chesapeake Bay. These jellies are smaller and have fewer tentacles than their ocean cousins, highlighting the importance of marine ecosystems.
Researchers found the common ancestor of apes to be small, probably weighing around 12 pounds, contrary to previous suggestions. This discovery has implications for understanding the evolution of human family trees and behavior such as suspensory locomotion.
A newly identified prehistoric marine predator has shed light on the origins of ancient reptiles. The Melksham Monster, a 10-foot-long animal that lived in warm seas during the Middle Jurassic, reveals an early rise of these distant relatives.
Scientists have discovered a new group of sponges in the central Pacific Ocean that could serve as an indicator species for measuring the impact of deep-sea mining. The newly found sponge species, Plenaster craigi, is abundant on metal-rich nodules at depths of 4000m and has been described from two expeditions to the region.
Scientists identified Painted Rocksnail as a distinct species despite mistaken identity for over 100 years. New study confirms its restricted range and implications for conservation efforts are significant.
A team of researchers has recovered the location of a nova that was first spotted by Korean astrologers in 1437, providing evidence for a long-term life cycle with multiple stages. The study supports the idea that novae undergo smaller-scale eruptions after fading to obscurity for thousands of years.
Researchers at University of Cambridge and Natural History Museum analyze 450 anatomical characteristics to place Chilesaurus in dinosaur family tree. The study reveals Chilesaurus fills a large gap between two major dinosaur groups, with implications for understanding the origins of Ornithischia.
A new species of damselfly, Mesosticta davidattenboroughi, has been discovered in mid-Cretaceous Burmese amber and named after Sir David Attenborough. The fossil is extremely well-preserved, showing a complete set of wings, and provides new insights into the past appearance of a rare group of damselflies.
Researchers have revised the understanding of a large group of Neotropical 'club-tailed' scorpions, revealing two new genera and three new species. The findings provide insight into the evolution and classification of these ancient arthropods, which are among the oldest living terrestrial species on Earth.
Researchers at WMG University of Warwick used CT scanning technology to reveal five previously unseen teeth in the Megalosaurus jawbone, challenging previous restoration work. The scans also showed the extent of repairs, suggesting at least two phases of repair using different types of plaster.
A team of citizen scientists using a new tool discovered a previously unknown brown dwarf, about 100 light years away from the Sun. The object was confirmed via an infrared telescope and published in the Astrophysical Journal Letters.