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Light alters calling-song characteristics in crickets.
J Exp Biol
January 2025
School of Zoology, Tel Aviv University, Tel-Aviv 6997801, Israel.
Communication is crucial for mate choice and thus for the survival and fitness of most species. In the cricket, females choose males according to their calling-song attractiveness and, exhibiting positive phonotaxis they approach the chosen male. Light has been widely reported to induce changes in crickets' daily activity patterns, including the males' stridulation behavior.
View Article and Find Full Text PDFNo gender differences in attraction to young partners: A study of 4500 blind dates.
Proc Natl Acad Sci U S A
February 2025
Tawkify, Inc., Wilmington, DE 19804.
In mixed-gender couples, men are older than women on average. Scholars and laypeople presume that this arrangement reflects mirrored preferences such that men desire younger partners and women desire older partners. Nevertheless, relevant published data on in-person romantic evaluations-that is, studies where adults interact in person and report their initial attraction to each other-are nearly nonexistent.
View Article and Find Full Text PDFPreferences for facial femininity/masculinity across culture and the sexual orientation spectrum.
J Exp Psychol Gen
January 2025
Department of Cognitive and Psychological Sciences, Nagoya University.
Judgments of attractiveness have many important social outcomes, highlighting the need to understand how people form these judgments. One aspect of appearance that impacts perceptions of attractiveness is facial femininity/masculinity (sexual dimorphism). However, extant research has focused primarily on White, Western, heterosexual participants' preferences for femininity/masculinity in White faces, limiting generalizability.
View Article and Find Full Text PDFHost Plant Odour and Sex Pheromone are Integral to Mate Finding in Codling Moth.
J Chem Ecol
January 2025
Department Plant Protection Biology, SLU Alnarp, Lomma, Sweden.
The great diversity of specialist plant-feeding insects suggests that host plant shifts may initiate speciation, even without geographic barriers. Pheromones and kairomones mediate sexual communication and host choice, and the response to these behaviour-modifying chemicals is under sexual and natural selection, respectively. The concept that the interaction of mate signals and habitat cues facilitates reproductive isolation and ecological speciation is well established, while the traits and the underlying sensory mechanisms remain unknown.
View Article and Find Full Text PDF[The many ways flowers send signals to pollinators].
Biol Aujourdhui
January 2025
Institut d'Écologie et des Sciences de l'Environnement de Paris (iEES Paris), Paris, France - Sorbonne Université, 4 place Jussieu, 75005 Paris, France.
The evolutionary success of angiosperms, which make up more than 95 percent of the world's terrestrial flora, is largely based on their interactions with animal pollinators. Indeed, it is estimated that, on average, 87.5 percent of flowering plants are pollinated by animals.
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