Articles tagged with Mating Behavior
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Researchers discovered two dominant strategies among flatworms: reciprocal males receive more resources, while hypodermic mated species invest heavily in female organs. Self-fertilization in these species increases with hypodermic mating, suggesting a common evolutionary principle between plants and worms.
Researchers identified Dh31, a signaling molecule released from the fly's gastrointestinal tract, which switches focus from eating to mating. The study provides mechanistic explanation for how Dh31 acts on brain to change motivational drive of critical behaviors.
Researchers found that male mosquitoes beat their wings up to 500-1,000 times a second, changing frequency to produce 'distortion tones' more audible to the male ear. This change is partly due to their circadian clock and allows males to detect females in swarms.
Researchers found that dolphin females have a functional clitoris, with large areas of erectile tissue, nerves, and free nerve endings similar to those in human clitoris. The study suggests that the dolphin clitoris plays a role in female sexual pleasure, providing insights into animal sexuality.
A new theory outlines how magnetite crystals in specialized receptor cells of salmon and other animals may have roots in ancient genetic systems developed by bacteria, suggesting a common evolutionary history between magnetite-producing bacteria and fish. The findings have the potential for widespread application, from improving salmon...
A study predicts that 6,150 km of new Pacific salmon habitat will emerge in the Pacific mountains by 2100, with most occurring in Alaska and the transboundary region. This newly formed habitat can support rapid colonization by salmon populations, offering local opportunities for some species but posing challenges under climate change.
Researchers find that male golden orb-weaving spiders use animal magnetism and physical forces to approach females without being detected. By sensing vibrations on the web, males can balance risk and reward to survive, demonstrating complex decision-making capabilities.
Researchers found that fish exposed to BPA exhibited feminizing effects on gonads, brain genes, and hormone levels, leading to changes in aggression and sex determination. In contrast, EE2 had less pronounced effects, with decreased aggression despite feminization of gonads.
Researchers found that females who consumed less food for their entire lives lived longer but didn't reproduce as well as better-fed counterparts. However, those who switched to unlimited food after early life restriction started mating and reproducing more, producing three times more offspring than restricted diet flies.
FAU researchers custom-build multi-sensor tag combined with AI to observe goliath grouper species in the wild. The study identified 13 behaviors, including hovering, forward swimming, and vocalizations, using video footage from the tags.
Exposure to artificial light at night impairs crickets' activity cycles, disrupting their nocturnal chirping and potentially affecting reproduction. The study, conducted by researchers at Tel Aviv University and the Open University, highlights the need to reduce artificial light pollution to protect environmental behaviors.
Researchers have identified a gene called Nup54 that plays a crucial role in regulating female reproductive behaviors in fruit flies. This discovery provides new insights into the molecular mechanisms underlying sexual conflict and its impact on evolution.
Researchers found that over a quarter of female white-necked Jacobin hummingbirds exhibit showy colors similar to males, aiding in evasion of aggressive behaviors during feeding and mating. This study suggests that the display of flashy colors is driven by social selection rather than sexual selection.
MIT neuroscientists have identified a brain circuit that stops mice from mating with others showing signs of illness. The circuit, controlled by the amygdala's COApm region, triggers a warning signal to stay away from sick animals.
Low-ranking male hyenas experience higher levels of stress when interacting with rivals, limiting their access to desirable females and reproductive success. This mechanism is more crucial than physical traits in determining offspring quality and quantity.
Researchers at the Champalimaud Centre for the Unknown discovered a direct link between prolactin and the male refractory period is unlikely. They found that artificially increasing or blocking prolactin levels had no effect on the animals' sexual behavior, contradicting the long-held theory.
A study by the University of Portsmouth discovered that giant feathery shipworms engage in competitive mating, where larger worms have an advantage due to longer siphons. The researchers observed stages of sperm transfer and sparring between rival mates, revealing a sophisticated form of reproductive behavior.
Researchers found that flashier lizards are more likely to be attacked by predators due to their bright colors. However, females prefer brighter males because they may possess high-quality genetic material or resources.
Researchers found that betta fish opponents undergo similar brain changes that become more synchronized after longer fights. The study suggests that even in aggressive behavior like fighting, brains may cooperate at the molecular level.
Researchers discovered that the darcin pheromone triggers a complex response in the brain of female mice, driving both innate and learned sexual behaviors. The study mapped the neural circuitry responsible for processing the pheromone, revealing its role in integrating sensory information with an animal's internal state.
A study on olive baboons found that females avoid mating if either the male or female shows visible signs of infection, while males do not change their behavior. The researchers aim to understand how sexually transmitted diseases impact non-human primate populations.
Researchers from Yale School of Forestry & Environmental Studies propose a new framework for understanding same-sex behavior in animals, arguing that these behaviors are not costly but rather neutral and advantageous. They suggest that these tendencies likely evolved in the earliest forms of sexual behavior and may be more common than ...
A University of Pittsburgh study found that sexual selection alone could spark the formation of new species through imprinted behaviors. The research, which focused on strawberry poison frogs, suggests that females prefer mates with similar colors to their mothers and males become more aggressive against rivals with matching colors.
A team of researchers has developed a robotic device that can mimic the sensory function of human skin, allowing it to sense touch and respond accordingly. The device, which features a stretchable transistor, represents a significant step towards creating prosthetics that can directly connect with peripheral nerves.
Research at a bonobo community found that female-female sex increased oxytocin levels, promoting social bonding and cooperation. This suggests that same-sex interactions may play a crucial role in maintaining high levels of cooperation among female bonobos.
Observational fieldwork provides valuable insights into evolutionary function, conditions for cognitive skill employment, and brain plasticity. Janmaat's five-step guideline guides scholars in studying cognition in wild animals through a suite of behaviours and statistical models.
A new study finds that male black widow spiders will hijack the silk trails left by rival males in search of a potential mate. The researchers discovered that males can locate females from up to 60 meters away and move at higher speeds when following rival's silk trails.
In a rare African damselfly species, females facilitate reproductive success of inferior males when their health is at risk. By evading dominant males' attention and preserving their health, females inadvertently enable sneaker male paternity.
The sixth National Survey of Australian Secondary Students and Sexual Health found 47% of sexually active respondents had engaged in intercourse, with 76% having sex at home. The survey also showed that young Australians have good knowledge of sexual health, are behaving responsibly, and are actively seeking out trusted sources of info...
A new study found that endocrine disruptors can alter female reproduction and sexual development in offspring, affecting reproductive health throughout multiple generations. The researchers observed delayed puberty, abnormal cycles, and ovulation in third- and fourth-generation females.
Researchers found that female crickets choose males who lost fights over alpha males for mating. In a study using the cricket Gryllus bimaculatus, females preferred males with lower aggression levels during courtship.
A study by Oxford University found that individual personalities of male great tits influence their bonding with future breeding partners. Bold, proactive males choose partners sooner and invest more effort in relationships before breeding begins.
New research reveals that female mosquitoes rapidly evolve more selective mating behavior when faced with existential threats from other invasive mosquito species. This adaptation is driven by genetic changes in specific gene regions and enables them to avoid sterility caused by interbreeding with male males of a different species.
Researchers at London School of Hygiene & Tropical Medicine identified six common categories of disgust related to infectious diseases, including infected wounds and poor hygiene. These findings could help target public health messaging and develop new methods to keep environments healthy.
A recent IUPUI study has made a groundbreaking discovery in understanding the role of blow flies in transmitting pathogens. Researchers found that analysis of blow fly digestive tracts can detect fecal metabolites, providing valuable insights into pathogen transmission and conservation.
A field study in Panama reveals how tropical fish use electric fields to communicate for coordinated behaviors like mating and reproduction. Researchers found distinct signals for attracting mates and signaling fertilization, highlighting the need for studying behavior and sensory scenes in natural environments.
Scientists found that biological sex modifies communication between nerve cells and generates different responses in males and females to the same stimulus. This study used C. elegans to demonstrate how sex-specific configurations of neural circuits can modify behavior.
A study predicts that King penguins will face massive population crashes due to increased food travel distances, potentially leading to extinctions. However, the birds' ability to adapt and find new breeding locations may help them survive.
A study published in Nature Communications reveals that kisspeptin, a hormone in the brain, drives attraction to the opposite sex and triggers sexual behavior. The discovery opens up new possibilities for treating patients with low sexual desire disorders.
NOAA scientists found that vessel traffic noise is reducing the distance over which Atlantic cod and haddock can communicate with each other. This may alter their daily behavior, feeding, mating, and socializing during critical biological periods.
Scientists have developed a theory explaining how animals adjust their movement patterns in response to environmental cues such as food, predators and mating partners. The research reveals the complex interplay between an animal's force, drag, and behavioral response to environmental signals.
Golden-collared manakin males use cleanliness to attract mates and exhibit complex courtship displays. In contrast, females show no motivation to clean their male counterparts' displays, suggesting hormonal influence is specific to males.
Research highlights the benefits of maternal stress in wildlife, influencing offspring characteristics and behaviors. Prenatal exposure to stress hormones can shape epigenetic changes, behavior, and physiology in offspring.
Researchers at the University of Tokyo have discovered how a male pheromone enhances female sexual behaviors in mice by activating specific neurons in the brain. The study found that a single purified chemical called ESP1 is detected by a sole corresponding receptor, making it easier to track and understand its effects on behavior.
A study by Bielefeld University researchers found that male plover survival rates are significantly higher than females, resulting in a sex bias of only 37% females among adult plovers. This advantage may be due to males having greater body weight and growth rates at hatching.
Researchers at California Institute of Technology have identified a neural circuit in the brain that controls wakefulness. The discovery could lead to new treatments for insomnia and other sleep disturbances. The study found that stimulating these neurons with light can help overcome tiredness, while silencing them can induce sleep.
Researchers at Georgia State University have discovered a link between male sexual behavior and elevated male sex hormone receptors in the muscles of sex-changing fish. The study found that males express more androgen receptors in the supracarinalis muscle, which is associated with increased rates of courtship and aggressive displays.
A new study by researchers at the University of California, Davis and the University of New Hampshire found hundreds of differences in gene activity between male and female rock doves. The findings aim to promote sex and gender inclusion in experimental science and shed light on physiological differences between sexes.
Research by entomologists from the University of Lincoln found that female beetles control the duration of copulation, with kicking time remaining consistent when mated to the same partner. In contrast, mating to different partners resulted in varying kick times and durations.
Researchers observed a male Japanese macaque mounting two female Sika deer, with the animals engaging in non-penetrative sexual behavior. The study suggests that hormonal surges during breeding season may trigger such interactions, highlighting an unusual form of interspecies communication.
Male bumblebees perform characteristic learning flights to find flowers but neglect their nest's location. Unlike females, males don't return to the nest after leaving and instead travel far to avoid breeding with relatives.
The review highlights the need for personalized biologic dosing in rheumatoid arthritis treatment due to varying patient responses and drug concentrations. Implementing individualized doses can improve therapeutic outcomes while reducing costs.
Researchers at UC Berkeley discovered a bacterium, Vibrio fischeri, releases an enzyme that induces choanoflagellates into full mating frenzy. This finding suggests bacteria may influence animal mating.
Researchers from Slovenia and South Africa discovered heterospecific mating in African golden orbweb spiders, where males mate with females of different species. The study suggests that such interactions could play a role in determining community structure and may be costly to rarest species.
A recent study from Queen Mary University of London found that sexually selected species can adapt faster to new environments, but only when population sizes are large. Competitive males pay a high price for their displays, increasing the risk of extinction when populations are small.
A study by Tsuyoshi Takeuchi found that aerial displays in butterflies are not due to a war of attrition between males, but rather an inability to distinguish the sex of their opponents, leading to prolonged courtship behavior.
A new study in Nature found that fruit fly sperm tails are the most extreme ornament, with lengths of up to 6 cm, due to female preference for longer sperm. This preference is linked to genetic correlations between female reproductive tracts and male sperm length, as well as a trade-off between sperm length and number.
A recent study by Uppsala University researchers reveals that same-sex sexual behavior (SSB) is more common than thought and may have benefits in the opposite sex. SSB was found to increase reproductive performance in siblings of the opposite sex, suggesting a genetic mechanism driving its prevalence across various animal species.
Researchers found that male Darwin's bark spiders salivate onto female genitalia as an obligatory behavior before and after copulation. This unusual practice is thought to boost the male's chances of paternity by signaling quality or favoring one sperm over rivals.
A new explanation for why female animals are less colorful and decorated than males is that they avoid attracting unwanted male attention. Researchers propose that females signal their unattractiveness to reduce harassment, rather than simply lacking ornamentation due to camouflage or fertility concerns.