Results 91 to 100 of about 125,407 (302)

Developmental neurogenetics of sexual dimorphism in Aedes aegypti

open access: yesFrontiers in Ecology and Evolution, 2015
Sexual dimorphism, a poorly understood but crucial aspect of vector mosquito biology, encompasses sex-specific physical, physiological, and behavioral traits related to mosquito reproduction.
Molly eDuman-Scheel   +4 more
doaj   +1 more source

Revisiting a long‐overlooked skull: Implications for the distribution of Dinodontosaurus brevirostris (Kannemeyeriiformes) in the Brazilian Triassic

open access: yesThe Anatomical Record, EarlyView.
Abstract Dicynodonts (Anomodontia: Dicynodontia) were one of the main groups of terrestrial tetrapods in Permian and Triassic faunas. In Brazil, the genus Dinodontosaurus is one of the most common tetrapod taxon in the Triassic Santa Maria Supersequence. This genus has a complex taxonomic history and is represented in the Triassic of both Argentina and
Julia Lara Rodrigues de Souza   +5 more
wiley   +1 more source

Craniometrical sexual dimorphism of the grey wolf (Canis lupus, Canidae, Carnivora) in Bulgaria

open access: yesHistoria Naturalis Bulgarica
Cranial sexual dimorphism in grey wolf (Canis lupus Linnaeus, 1758) from Bulgaria has not been studied so far. Skulls from adult individuals from across the country were studied.
Katelina Uzunowa   +4 more
doaj   +1 more source

THREE-DIMENSIONAL MSCT ANALYSIS OF SEXUAL DIMORPHISM IN FACIAL SKULL AND PIRIFORM APERTURE MORPHOLOGY IN SOUTH BULGARIA [PDF]

open access: yesJournal of IMAB
Purpose: Human skeleton exhibits varying degrees of sexual dimorphism – the pelvic bones, limbs long bones and the skull are the most frequently studied.
Zlatizara Todorova   +5 more
doaj   +1 more source

The transcriptional architecture of phenotypic dimorphism [PDF]

open access: yes, 2017
The profound differences between the sexes in gene expression are increasingly used to study the molecular basis of sexual dimorphism, sexual selection and sexual conflict . Studies of transcriptional architecture, based on comparisons of gene expression,
Mank, JE
core   +1 more source

Sexual dimorphism inDryopithecus africanus [PDF]

open access: yesPrimates, 1972
Among the numerous specimens presently classified withinDryopithecus africanus only one can be identified as a male of this species. Poor sampling is not the reason for the unequal numbers of male and female specimens. Rather, the males have been classified elsewhere, specifically withinDryopithecus nyanzae and "Kenyapithecus africanus." The specimens ...
openaire   +3 more sources

Broadening the semiaquatic scene: Quantification of long bone microanatomy across pinnipeds

open access: yesThe Anatomical Record, EarlyView.
Abstract Investigations of bone microanatomy are commonly used to explore lifestyle strategies in vertebrates. While distinct microanatomical limb bone features have been established for exclusively aquatic and terrestrial lifestyles, identifying clear patterns for the semiaquatic lifestyle remains more challenging.
Apolline Alfsen   +10 more
wiley   +1 more source

The battle of the sexes over the distribution of male surplus [PDF]

open access: yes
Female primates carry and nurse the fetus, and thus have the first responsibility for rearing the offspring. Assuming males are at least equally adept at obtaining food, males might either share surplus food with females or consume the food themselves ...
Berg, Hugo van den, Wooders, Myrna
core  

A morphometrical study on the skull of Padovana chicken [PDF]

open access: yes, 2017
A trial was carried out to study the head and skull characteristics in a crested chicken breed with cerebral hernia located in a frontal bony protuberance, an uncrested chicken hybrid strain and their relative crosses.
Rizzi, Chiara, Verdiglione, Rina
core   +1 more source

Statistical shape modeling of the human inner ear through micro‐computed tomography imaging

open access: yesThe Anatomical Record, EarlyView.
In this study, 54 cadaveric temporal bone specimens underwent high‐resolution micro‐CT imaging. Images were semi‐automatically segmented and converted to 3D surface mesh models for morphological measurement and analysis. Statistical shape models were created for the inner ear, cochlea, and vestibular system, as well as for sex‐ and side‐based subgroups.
Carmine Spedaliere   +8 more
wiley   +1 more source

Home - About - Disclaimer - Privacy