Results 31 to 40 of about 2,213 (203)
Saharan striped polecats in agricultural landscapes use many burrows (30–35 per season), facilitated by sandy soils. Burrow sharing is rare and mainly occurs between males and females during mating. Habitat use shifts seasonally, reflecting disturbance and soil conditions. Maintaining stable sandy habitats may be critical for persistence.
Firas Hayder +2 more
wiley +1 more source
In Alpine chamois, the complete wear of the first molar coincides with the beginning of senescence and the progress of tooth wear on calcareous substrate is slower than the one on other substrates, increasing life expectancy. Thus, the first molar wear may actually be considered as an effective descriptor of senescence stage.
Roberta Chirichella, Marco Apollonio
wiley +1 more source
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
Extreme Silk Toughness in Caerostris Spiders Is Limited to Adult Females
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
In 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
doaj +1 more source
Hermaphroditism and intersexuality in Portuguese medical photograph
The interest harboured by the Visual Culture of Medicine in photographic images of hermaphrodites dates back in Portugal to the birth of medical photography, with the photographic recording of a case of male hermaphroditism, that was studied in 1864 by ...
António Fernando Cascais
doaj +1 more source
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
wiley +1 more source
The 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
doaj +1 more source
Female‐Biased Sexual Size Dimorphism and Its Potential Causes in Hairy‐Winged Bats
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
SRY-negative XX sex reversal in an English Cocker Spaniel: a case report
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
doaj +1 more source

