Results 101 to 110 of about 914,664 (294)

Sexual Selection for Male Mobility in a Giant Insect with Female‐Biased Size Dimorphism [PDF]

, 2008
Female-biased size dimorphism in which females are larger than males is prevalent in many animals, but the factors causing this pattern of dimorphism are still poorly understood.
Gwynne, Darryl T, Bussiere, Luc, Darryl T. Gwynne, Kelly, Clint D, Clint D. Kelly, Luc F. Bussière   +5 more
core   +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

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

Nutritional aspects of sexual dimorphism in the American mink mustela vison (schreber) [PDF]

, 1987
Nutritional aspects of size-related sex differences in the diets of free-living mink were investigated in laboratory-based feeding trials with adult farm-bred mink maintained on 'natural' diets.
Gregory, Jonathan
core  

Quantitative muscle architecture in large carnivorous marsupials (Marsupialia: Dasyuridae) and links to substrate use and prey processing

The Anatomical Record, EarlyView.
Abstract The Dasyurid species Sarcophilus harrisii, Dasyurus maculatus, and Dasyurus viverrinus, occupying diverse ecological niches and forming a guild structure in Tasmania, provide a basis for examining the roles of various forelimb muscle groups in prey capture and locomotion.
Riya G. Bidaye, Samuel H. Frenkel, David P. Hocking, Alistair R. Evans, Justin W. Adams   +4 more
wiley   +1 more source

Sexual dimorphism by measuring the mesiodistal width of the permanent maxillary and mandibular canine in a sample of the South African population in the Northern Suburb of Cape Town. [PDF]

, 2019
Magister Scientiae Dentium - MSc(Dent)Human identification is one of the major responsibilities in the field of Forensic Odontology as it plays a role in identifying deceased individuals using their oral and dental structures.
Abdellatif, Abdelhady
core   +1 more source

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

Exploring the cranial morphology and possible convergences of Triassic non‐crocodylomorph pseudosuchians (Archosauria: Pseudosuchia) with other sauropsids through linear morphometrics

The Anatomical Record, EarlyView.
Abstract Triassic pseudosuchians had highly diversified cranial morphologies. These archosaurs occupied diverse ecological roles, ranging from terrestrial predators and herbivores to semiaquatic ambush predators and possible waders. Here, we apply linear cranial morphometrics to assess possible convergences with other sauropsids from the clades ...
Rafael Terras, Rodrigo Temp Müller, Leonardo Kerber, Mirian Carbonera   +3 more
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

Dental anomalies in Pleistocene African hippopotamuses from Olduvai Bed II

The Anatomical Record, EarlyView.
Abstract Hippopotamuses are key palaeoenvironmental indicators in African Pleistocene ecosystems due to their ecological dependence on permanent water bodies and their frequent representation in the fossil record. This study examines dental anomalies in Hippopotamus cf. gorgops from several localities in Bed II of Olduvai Gorge (Tanzania), dated to ca.
Darío Fidalgo, Faysal Bibi, Jean‐Renaud Boisserie, Jackson K. Njau, Ignacio de la Torre   +4 more
wiley   +1 more source