Results 11 to 20 of about 39,975 (260)

Sexual dimorphism in dinosaurs

open access: yeseLife, 2023
Studying fossils from a mass-mortality event reveals evidence for sexual dimorphism and, unusually, equal numbers of males and females in a herd of dinosaurs.
Nizar Ibrahim   +2 more
openaire   +3 more sources

Variation in craniomandibular morphology and sexual dimorphism in pantherines and the sabercat Smilodon fatalis. [PDF]

open access: yesPLoS ONE, 2012
Sexual dimorphism is widespread among carnivorans, and has been an important evolutionary factor in social ecology. However, its presence in sabertoothed felids remains contentious.
Per Christiansen, John M Harris
doaj   +1 more source

Feeding ecology and sexual dimorphism in a speciose flower beetle clade (Hopliini: Scarabaeidae) [PDF]

open access: yesPeerJ, 2018
The relationship between feeding ecology and sexual dimorphism is examined in a speciose South African monkey beetle clade. We test whether feeding and mating at a fixed site (embedding guild) is associated with greater levels of sexual dimorphism and ...
Jonathan F. Colville   +2 more
doaj   +2 more sources

Intra- and Interspecific Variation in Sexual Dimorphism Patterns of Mud Crab Genus Scylla Along the Equatorial Region

open access: yesFrontiers in Marine Science, 2021
Sexual dimorphism is generally obvious in brachyurans, and sexual dimorphism between species is of a higher degree to allow separation of trophic niches compared to the lower intraspecific variations between sexes.
Khor Waiho   +12 more
doaj   +1 more source

The sexual dimorphism of obesity [PDF]

open access: yesMolecular and Cellular Endocrinology, 2015
The NIH has recently highlighted the importance of sexual dimorphisms and has mandated inclusion of both sexes in clinical trials and basic research. In this review we highlight new and novel ways sex hormones influence body adiposity and the metabolic syndrome.
Biff F, Palmer, Deborah J, Clegg
openaire   +2 more sources

The ontogeny of sexual size dimorphism of a moth: when do males and females grow apart? [PDF]

open access: yesPLoS ONE, 2014
Sexual dimorphism in body size (sexual size dimorphism) is common in many species. The sources of selection that generate the independent evolution of adult male and female size have been investigated extensively by evolutionary biologists, but how and ...
R Craig Stillwell   +2 more
doaj   +1 more source

Sexual Dimorphism in Tilapia [PDF]

open access: yesNature, 1965
OBSERVATIONS have shown that the growth rate of males in the Tilapia genus is faster than that of the females.
openaire   +1 more source

Sexual Dimorphism of Size Ontogeny and Life History

open access: yesFrontiers in Pediatrics, 2020
Background: Ecological and physiological factors and social and economic constraints affect sex-specific body size. Here, we used the male/female (M/F) height ratio as an indicator of the combined effect of genetic and sex characteristics.
Alina German   +2 more
doaj   +1 more source

Wing sexual dimorphism of pathogen-vector culicids

open access: yesParasites & Vectors, 2015
Background Sexual dimorphism in animals has been studied from different perspectives for decades. In 1874 Darwin hypothesized that it was related to sexual selection, and even after nearly 140 years, when additional empirical data has become available ...
Flávia Virginio   +2 more
doaj   +1 more source

Facial Anthropometric Norms among Kosovo - Albanian Adults

open access: yesActa Stomatologica Croatica, 2017
The development of an anthropometric craniofacial database is a necessary multidisciplinary proposal. Aim: The aim of this study was to establish facial anthropometric norms and to investigate into sexual dimorphism in facial variables among Kosovo ...
Gloria Staka   +2 more
doaj   +1 more source

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