Articles tagged with Frogs
A new study from Wake Forest University found that testosterone influences the evolution of a waving display in male Bornean rock frogs. The research revealed that testosterone increases foot-flagging behavior and changes how hormones act on leg muscles, similar to the change seen in vocal croaks.
Hearing socially meaningful sounds can modify ear structure to better detect those sounds, improving hearing in green treefrogs. The study's findings have implications for elderly people with limited social interaction or prisoners in solitary confinement.
Researchers found that some frogs in Arizona are rapidly adapting to the fungal pathogen Batrachochrytrium dendrobatridis, which causes chytridiomycosis. The study identified a specific genetic variant, allele Q, that confers immunity to the disease, and showed that these variants were being rapidly inherited and evolving.
A new study reveals that pool frog tadpoles in Sweden grow faster under warm conditions, allowing them to complete their life cycle at high latitudes. This adaptation enables the species to survive in cold climates by maximizing growth during short periods of high temperatures.
The Indian Purple frog's unique development allows it to cling to underwater rocks as a tadpole and then dig underground as an adult. This adaptation enables the species to survive in ancient streams.
Researchers have uncovered the first confirmed report of tadpoles from the Indian Dancing frog family, revealing unique adaptations such as muscular eel-like bodies and skin-covered eyes. These findings provide valuable information for conservation of ancient and endemic frogs in the Western Ghats biodiversity hotspot.
The frog foam has been shown to release model dyes and prevent in vitro growth of Staphylococcus aureus for extended periods, indicating its potential as a non-toxic antibiotic delivery system.
A new golden frog species has been discovered in Colombia's cloud forests, with the discovery highlighting the country's rich biodiversity. The newly identified species is part of a diverse group of frogs that includes 465 recognized species, with many still awaiting description and classification.
Research shows that female poison frogs remember the exact location of where they laid their eggs, allowing them to transport only their own tadpoles. In contrast, males tend to transport both their own and unrelated tadpoles due to their territorial behavior.
University of Utah researchers discovered how certain brain cells compute sound length and detect short sounds. The study found that for a frog brain cell to recognize a short sound, it is inhibited from firing while the sound occurs, then excited into firing when the sound ends.
A new species of narrow-mouthed frog, Microhyla laterite, has been discovered in laterite rock formations of southwest India. The frog, which is distinct from closely related species, is classified as Endangered due to its narrow geographic range and fragile habitat.
Researchers discovered a gene in snails that determines shell twist direction, which may offer insights into human body asymmetry. The study found that the same gene affects left-right symmetry in other animals, including frogs.
A study published in Current Biology found that the gene responsible for twisted snails' shells is linked to internal asymmetry in frogs. This suggests that body asymmetry may be an evolutionarily ancient characteristic of animal development.
A research team has discovered new populations of the endangered banana frog in Southwest Ethiopia, expanding its geographical range. The study, published in ZooKeys, suggests that the frogs are more tolerant to forest degradation than expected, increasing conservation efforts.
Scientists have identified two new species of tree frogs in Taiwan, characterized by their unique gemstone-colored eyes. The new species, Kurixalus wangi and K. berylliniris, exhibit distinct reproductive behaviors, including egg-eating tadpoles, and are found in moist forests on the island.
A new genus of tree hole breeding frogs, Frankixalus, has been identified in India, featuring gel-encapsulated eggs and tadpoles that devour their mother's eggs. This discovery highlights the evolutionary distinctiveness and unique life history features of this lineage.
A new study suggests that climate change may reduce the range of the deadly chytrid fungus in Africa's Albertine Rift, potentially saving some amphibian populations. Microscopic examination revealed that most infected frogs appeared to be in good health, indicating regional resistance to the disease.
Researchers found that Brazilian torrent frogs employ a complex repertoire of acoustic and visual displays for communication, including hand, arm, and body movements. The study indicates that this frog species has one of the most diverse repertoires of visual and audio displays known to frogs.
Two new species of frogs, Rombophryne ornata and Rombophryne tany, are discovered in the forest floor of Madagascar's remote Tsaratanana Massif. The scientists found unique features such as spines over their eye sockets and distinctive colors like reddish and brownish hues.
Researchers have discovered six new African frog species and added back one previously lost, increasing the known number of clawed frog species from 22 to 29. The discovery highlights striking new characteristics and sheds light on evolution through DNA analysis.
Researchers at Case Western Reserve University found that habitat characteristics explain differences in immune defense traits of frogs between populations. Microbiome differences and altered natural peptide secretions may alter the amphibian's immune defense capabilities. The study suggests that land use changes can influence animal t...
A new tree frog species, Dendropsophus bromeliaceus, has been discovered in the Brazilian Atlantic forest, where tadpoles develop in pooled rainwater stored in bromeliad leaves. The species is distinguished by its small size and unique color pattern.
A University of Tennessee study found that Caucasian parsley frogs rely on insect-rich bat guano for food in limestone caves. The research highlights the critical role bats play in maintaining cave ecosystems and underscores the need to protect small bat colonies.
New algorithms have been developed using the natural process of Japanese tree frogs singing out of sync to solve computational problems in graphs and social networks. These algorithms, known as FrogCOL and FrogMIS, can identify independent sets of nodes and detect structural patterns in complex networks.
Researchers at Virginia Tech found that naturally occurring bacteria on a frog's skin can respond to infection and adjust their structure and function to compensate for it. The study suggests that the whole community of bacteria is important, not just a single protective bacterium. This discovery offers hope in limiting the impact of c...
Two new frog species have been discovered in the Raja Ampat Islands of New Guinea, characterized by their unique advertisement calls and morphological features. The specimens were found to be hermaphrodites, possessing both male and female reproductive systems.
A new study found that deforestation in Borneo's forests leads to a decline in frog species richness, with only 20% of primary forest species remaining in young oil palm plantations. The study highlights the need for rigorously enforcing riparian buffer zones to mitigate the impact of industrial monocultures on amphibian populations.
The African clawed frog's evolution to violet vision involved rapid and controlled molecular changes, with five classes of opsin genes playing a crucial role. The study identified 12 mutations, including site 113, which shifted from glutamic acid to aspartic acid, leading to the frog's unique visual adaptation.
A Yale study reveals that suburban ponds experience a gender revolution due to elevated levels of estrogen in shrubbery and lawn areas. The research shows that female frogs outnumber males, likely caused by endocrine disruption from phytoestrogens produced by plants commonly found in lawns.
Climate change is causing significant habitat loss for Pacific Northwest amphibians, including the Cascades frog, which may become extinct by 2080. The study forecasts that more than half of intermediate wetlands will convert to fast-drying ephemeral wetlands, threatening these unique species.
A study on túngara frogs reveals the 'decoy' effect, where females choose less attractive mates over more appealing options when a third, inferior mate is introduced. This challenges rational choice models used in sexual selection theory and highlights the influence of context on mating decisions.
A new study by biologists from Case Western Reserve University suggests exposure to road salt increases the size of wood frogs, but also shortens their lives. Wood frog tadpoles exposed to road salt grew larger and turned into larger frogs at metamorphosis than those raised without being subjected to the contaminant.
A newly identified and highly infectious tadpole disease has been discovered in diverse frog populations across the globe. The study reveals a previously unidentified microbial group that infects tadpole livers, contributing to the decline of amphibian populations.
Researchers have identified two species of Brazilian frogs that are venomous, using their heads as a weapon to deliver toxic secretions. The discovery sheds light on the biology of amphibians and their interactions with predators in the wild.
A new fleshbelly frog species, N. madreselva, has been discovered in the Peruvian cloud forest, characterized by its striking coloration and limited distribution. The species is threatened by deforestation, diseases, and agricultural activities, emphasizing the need for conservation efforts to protect amphibian biodiversity.
Researchers have identified four new highly endangered species of West African torrent-frogs, revealing a previously unknown level of molecular variation. The discovery highlights the urgent need for conservation efforts in the Upper Guinean biodiversity hotspot, where habitat loss threatens the survival of these unique species.
The newly discovered Rhombophryne longicrus is an unusually long-legged new species of frog from Madagascar that challenges the traditional burrowing behavior of its relatives. Genetic analyses reveal close relationships to another diamond frog species, highlighting concerns over extinction due to habitat destruction.
Wild kangaroos show a consistent preference for using their left hands for actions like grooming and picking leaves. The finding expands our understanding of handedness in animals and may offer insights into neuropsychiatric conditions such as schizophrenia and autism.
Researchers found that exotic fish can amplify viral levels in garden ponds, while chemicals like slug pellets weaken frog immune systems. Simple precautions, such as reducing chemical use and not stocking non-native species, can help reduce the spread of the devastating ranavirosis disease.
Túngara frogs exhibit different escape responses when attacked by ground versus aerial predators. They flee from snakes on the ground but move towards bats in the air, effectively undercutting their flight path. This study highlights the flexibility of prey strategies to evade predators with diverse attack modes.
A newly discovered frog species, Pristimantis mutabilis, has the ability to change its skin texture in minutes to blend into its surroundings. The frogs were found in Ecuador's cloud forest and their shape-shifting capability challenges traditional methods of species identification.
Researchers detect deadly chytrid fungus in Madagascar, threatening its unique amphibian population. The discovery highlights the global pandemic's impact on biodiversity and calls for continued monitoring and breeding programs.
A new species of water frog, Telmatobius ventriflavum, was discovered in central Peru. The species' golden yellow and orange coloration helps identify it as a unique addition to the Andean biodiversity hotspot.
The journal presents studies on playfulness in dogs, dolphins, frogs, and octopuses, as well as its connection to humor, social bonding, and creativity. Researchers investigate how experiences in infancy shape a person's sense of humor and how playfulness affects adaptability and social success.
A new species of fanged frog has been discovered, giving birth to live tadpoles through internal fertilization, a rare reproductive method among frogs. The frog's unique behavior is just one example of the island's incredible biodiversity and adaptive radiation of species.
A novel gene knock-in technique using PITCh enables accurate and efficient insertion of exogenous genes into human cells, silkworms, frogs, and other organisms. This method overcomes technical hurdles associated with homologous recombination in cultured cells and organisms.
A new UCSB study reveals that a fungal pathogen in amphibians disrupts the skin microbiome, leading to dramatic changes in bacterial communities. The research has significant implications for understanding infectious disease dynamics and developing responses to diseases causing amphibian extinction.
A recent study by Germán Orizaola and colleagues found that female frogs can influence the growth rate and development of their offspring in response to changes in reproduction dates. By delaying breeding, females can accelerate larval growth, potentially helping species adapt to environmental uncertainty.
A Rutgers researcher and team of scientists have proven the existence of a new frog species living in wetlands from Connecticut to North Carolina. Named Rana kauffeldi, it was initially dismissed by naturalist Carl Kauffeld's claim in 1937.
A new species of leopard frog, Rana kauffeldi, has been identified in the New York City metropolitan area through a combination of acoustic and genetic data. The species is found in open-canopied wetlands with upland patches and its range extends from central Connecticut to northeastern North Carolina.
Researchers from NUS observe a new reproductive mode in critically endangered white spotted bush frogs, breeding and laying direct-developing eggs in live bamboo. The discovery sheds light on the unique behavior of these frogs and highlights the importance of conservation efforts to protect their habitats.
Researchers found that bright coloration preceded louder, more complex calls in certain species of poisonous frogs, which helped protect them from predators. This led to the development of unique vocalizations, with females preferring lower-pitch, pulsing calls.
Researchers have found that emerging viruses are causing severe disease and mass deaths in many amphibian species, including frogs and salamanders. The viruses, part of the Ranavirus group, are being spread through human activities and are having a devastating impact on entire host communities.
Researchers analyzed Madagascar's lizard, snake, frog, and tortoise populations to understand how biodiversity hotspots come to be. Climate change and land use affect different species differently, with some doing better while others decline.
Researchers found that chickens have a limited number of bitter taste receptors but can compensate with a wider tuning range. Frogs, on the other hand, have more receptors and a mix of broad and narrow tuning capabilities. This diversity may be an adaptation to their environment, which includes both land and water.
A study found that warmer winters lead to earlier breeding in wood frogs, resulting in fewer eggs and delayed tadpole development. However, more rain and snow appear to increase egg production, potentially counteracting the negative effects of warming.
A new poison dart frog species, Andinobates geminisae, has been discovered in Donoso, Panama. Genetic sequencing confirms it is a distinct species from another known poison dart frog, Oophaga pumilio.
Hansen's tree frog embryos hatch earlier after being preyed upon by katydids, responding to chemical cues. This flexible hatching behavior allows the frog an adaptive advantage, as it gives them time to escape into the next life-stage.
A new species of frog was discovered in Malaysian swampland, genetically distinct from its doppelganger on Siberut Island. Genetic analysis using Next Generation Sequencing confirmed the separation, making it a unique finding in herpetology.
A large-scale biogeographic analysis by GW researcher Alex Pyron shows that amphibians have moved across the planet throughout time, with some species dispersing long distances over water. The study reveals three major processes driving their distribution: vicariance, dispersal, and unexpected oceanic dispersals.