Results 31 to 40 of about 922 (170)
Integrative Zoology, EarlyView.Sexual cannibalism (SC), where one mating partner consumes the other in the context of mating, is especially prevalent among spiders. However, the evolution of SC in spiders is still not fully understood. We review key hypotheses for SC and explore how female‐initiated SC has driven the evolution of various male counter‐adaptations to mitigate its ...
Simona Kralj‐Fišer +3 more
wiley +1 more source
Analiza i EgzystencjaIn my paper, I attempt a phenomenological analysis of the lived experience of intersexuality, which I view from the perspective of the problem of indeterminacy concerning the horizon of the givenness of homeworld founded on the broader basis of the pre ...
Anna Alichniewicz
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Extreme Silk Toughness in Caerostris Spiders Is Limited to Adult Females
Integrative Zoology, EarlyView.We ask whether species with exceptionally tough silk, like Caerostris bark spiders, show different developmental patterns in silk toughness between ontogenetic stages and sexes. We found that only large females produce exceptionally tough silk with higher initial stiffness, while juvenile females as well as adult and juvenile males produce inferior ...
Matjaž Gregorič +4 more
wiley +1 more source
Frontiers in Marine ScienceThe redclaw crayfish is sexually dimorphic, with males preferring females in terms of growth rate and size. Currently, the molecular mechanism of sexual dimorphism is not well understood in crustaceans, and studies on the joint analysis of the gonadal ...
Ruiqi He +9 more
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SRY-negative XX sex reversal in an English Cocker Spaniel: a case report
Veterinární Medicína, 2015 A SRY-negative XX male describes a female karyotype with testicular tissue resulting from abnormal gonadal development. In such cases male gonad formation takes place in the absence of a Y chromosome which supports the hypothesis that some other genes ...
D. Nak +6 more
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Integrative Zoology, EarlyView.Integrating comparative spectrometry, image analysis, and thermal modeling, we reveal that (1) females optimize crypsis via background matching, (2) males prioritize high‐contrast disruptive patterning at a significant thermoregulatory cost (reduced solar heat gain), and (3) habitat‐specific monomorphism in Diploderma slowinskii underscores ecological ...
Yuning Cao, Lin Shi, Yin Qi
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The ambiguity of freemartinism diagnosis in cattle revealed by cytogenetic and molecular techniques
Czech Journal of Animal Science, 2004 Nineteen heifers and three male co-twins, originating from heterosexual twin pregnancies, were analysed with the use of cytogenetic and molecular techniques.
J. Nowacka +6 more
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Female‐Biased Sexual Size Dimorphism and Its Potential Causes in Hairy‐Winged Bats
Integrative Zoology, EarlyView.Based on the integration of molecular genetics, traditional and geometric morphology, and acoustic characteristics of hairy‐winged bats (a species that was historically misclassified into two species due to extreme craniodental divergence between the sexes) in multiple regions of China, we quantified the sexual size dimorphism (SSD) between males and ...
Yang Yue +7 more
wiley +1 more source
Rewriting the intersex body: On the opera adaptation of Herculine Barbin’s Memoirs
JoSTrans: The Journal of Specialised TranslationHerculine Barbin’s memoirs, published by Foucault in 1978, are considered the first testimony of an intersex person. Barbin’s story has been adapted several times, including in a 19th-century German short story and in a 1985 French film.
Gonzalo Iturregui-Gallardo
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Acta Zoologica, EarlyView.ABSTRACT Weapons are morphological structures used by animals in various contexts, especially in intra‐specific contests and visual displays. In snapping shrimps of the genus Alpheus, particularly the monogamous species Alpheus brasileiro, both sexes bear enlarged chelipeds, potentially conferring advantages in mate competition or territorial defence ...
Leonardo Moreira +3 more
wiley +1 more source