Results 121 to 130 of about 65,108 (304)

The Involvement of Melatonin in the Dimorphism of Glucose and Lipid Metabolism of Tilapia

Biomolecules
In tilapia, males grow faster than females, but the metabolites/pathways behind this sexual dimorphism remain unclear. In this study, we first examined growth, feeding, serum biochemical parameters, and mRNA expression in tilapia under mono-sex and mixed-
Jingkai Qin, Chenguang Liu, Zongzhen Liao, Yang Yu, Caiyun Sun, Wensheng Li   +5 more
doaj   +1 more source

Describing shell shape variations and sexual dimorphism of Golden Apple Snail, Pomacea caniculata (Lamarck, 1822) using geometric morphometric analysis [PDF]

, 2017
Pomacea caniculata or Golden Apple Snail (GAS) existed to be a rice pest in the Philippines and in Asia. Likewise, geographic location also contributes its increasing populations thus making it invasive among freshwater habitats and rice field areas ...
C.C. Cabuga, R.P. Sularte, M.C.O. Acob, et al.   +2 more
core  

Previously undocumented regional variability in crab‐eating macaque skull sexual dimorphism and its implications for biological and morphometric studies

The Anatomical Record, EarlyView.
Abstract In a large sample of adult crab‐eating macaques, we quantified sexual dimorphism in size, shape, and covariance across the whole skull and among anatomical regions of the cranium and mandible. All regions showed significant mean sex differences, but the magnitude of size and shape dimorphism varied substantially.
Andrea Cardini, Paul O'Higgins
wiley   +1 more source

First Evidence of Secondary Sexual Dimorphism in the Freshwater Fish Family Botiidae: A Newly Recognised Synapomorphy of Loaches (Cypriniformes: Cobitoidea)

Fishes
Within the freshwater fish order Cypriniformes, loaches form a monophyletic lineage comprising nine families with more than 1400 species. Secondary sexual dimorphism is widespread among loach families, most notably in the form of enlarged pectoral fins ...
Jörg Bohlen, Tomáš Dvořák, Vendula Šlechtová   +2 more
doaj   +1 more source

Geometric morphometric analysis describing sexual dimorphism in housefly, Musca domestica Linn. (Diptera: Muscidae) [PDF]

Houseflies (Musca domestica) (Diptera: Muscidae) are medically important insect species because they serve as vectors of pathogens. The study generally described the sexual dimorphism of M. domestica based on their wing size and wing shape.
Helen B. Pondevida, Ernel D. Bagbag
core  

Pelvic morphology and body size in relation to the preauricular sulcus: Evidence from medieval to modern Iberia

The Anatomical Record, EarlyView.
Abstract The preauricular sulcus has long been debated as a pelvic feature variably attributed to obstetric stress, ligamentous traction, and broader biomechanical processes. To clarify its determinants, we analyzed 409 adult individuals from three archeological and one early modern skeletal collection from the Iberian Peninsula, integrating graded ...
Rebeca García‐González, Julia Muñoz‐Guarinos, Nico Cirotto, Sonia Díaz‐Navarro, Laura Rodríguez, José Miguel Carretero   +5 more
wiley   +1 more source

The petrotympanic canal (Huguier canal): Evolutionary, anatomical, and medical perspectives

The Anatomical Record, EarlyView.
Abstract The petrotympanic canal, traditionally referred to as Civinini's or Huguier's canal, represents an anatomical passage connecting the middle ear and temporomandibular joint (TMJ). Despite its early description, its structural complexity and functional significance have often been underestimated. In this study, we combined historical, anatomical,
Andrea Papini, Nicola Montemurro, Ferdinando Paternostro, Immacolata Belviso, Massimo Galli, Petra Martini, Licia Uccelli, Jacopo Moggi‐Cecchi, Gregorio Oxilia   +8 more
wiley   +1 more source

Evolution of craniofacial shape in relation to sexual dimorphism in Theropithecus and Papio

Frontiers in Ecology and Evolution
IntroductionSexual dimorphism in cranial morphology is a significant aspect of primate evolution, providing insights into evolutionary pressures and mating systems in different species.
Ángeles Ossorio, Ambra Figueroa-Torrejón, Rodrigo Buston, Matteo Caldon, Jacinto Mathe, Jacinto Mathe, Giuliano Doria, Spartaco Gippoliti, Spartaco Gippoliti, Antonella Volta, María Joana Ferreira da Silva, María Joana Ferreira da Silva, María Joana Ferreira da Silva, René Bobe, René Bobe, René Bobe, Susana Carvalho, Susana Carvalho, Susana Carvalho, Susana Carvalho, Cristian Capelli, Felipe I. Martínez   +21 more
doaj   +1 more source

The morphology of the knee joint in Homo sapiens : a morphometric study of form variation in the distal femur and proximal tibia. [PDF]

, 2005
This thesis explores form variation in the knee joint of thirteen geographically and economically distinct populations of modern Homo Sapiens from different ancestral backgrounds.
Stevens, Sally Diane
core  

The musculature and skeleton of the pelvic fin of the crocodile shark, Pseudocarcharias kamoharai (Matsubara, 1936) (Elasmobranchii: Lamniformes): Morphology and sexual dimorphism

The Anatomical Record, EarlyView.
This work brings new information on the sexual characteristics of the crocodile shark (Pseudocarcharias kamoharai) exploring the pelvic fin musculature, as well as the siphon sac and the musculature and skeleton of the clasper. Our paper is the first to point out clearly the sexual dimorphism related exclusively to the pelvic fin musculature in males ...
Laura F. Mianutti, Kenshu Shimada, João Paulo C. B. da Silva   +2 more
wiley   +1 more source