Results 171 to 180 of about 4,733 (215)

Tracheal chambers as a key innovation for high‐frequency emission in bat echolocation

The Anatomical Record, EarlyView.
Abstract Key innovations are pivotal for biodiversity and facilitating evolutionary success, enabling organisms' adaptation to various ecological niches through the diversification of phenotypic traits. In mammals, notable adaptations include evolving hypsodonty for grazing on grasses and, for bats, evolving echolocation and wing acquisition.
Nicolas L. M. Brualla, Laura A. B. Wilson, Khizar Hayat, Michael Doube, Vuong Tan Tu, Thongchai Ngamprasertwong, Thanakul Wannaprasert, Daisuke Koyabu   +7 more
wiley   +1 more source

Upward comparison predicts an increase in state body dissatisfaction after fitspiration exposure. [PDF]

Sci Rep
Ladwig G, Schönhals K, Tanck JA, Quittkat HL, Vocks S.   +4 more
europepmc   +1 more source

Human evolution and the obstetrical dilemma: The pelvic floor hypothesis

The Anatomical Record, EarlyView.
Abstract Human childbirth is mechanically difficult because a large‐headed, broad‐shouldered fetus must pass through a comparatively narrow, twisted bony birth canal. Traditional explanations of this “obstetrical dilemma” emphasize the role of bipedal locomotion in inhibiting the evolution of a wider, more spacious pelvis.
Barbara Fischer, Ekaterina Stansfield
wiley   +1 more source

SOX6 is expressed in various cell lineages in the developing mouse heart and contributes to proper valvuloseptal development

The Anatomical Record, EarlyView.
Abstract Cells derived from the endocardium, epicardium, cardiac neural crest, and second heart field play a critical role in the formation of the valvuloseptal structures of the heart. Previous studies have shown that the expression of the transcription factor SOX9 in these cell populations is essential in the regulation of this process.
Hannah G. Tarolli, Andrew B. Harvey, Inara Devji, Raymond N. Deepe, Jenna R. Drummond, Renélyn A. Wolters, Andy Wessels   +6 more
wiley   +1 more source

Muscle dysmorphia in adolescents and young adults. [PDF]

Lancet Child Adolesc Health
Nagata JM, Hur JO, Murakami K, Ganson KT, He J, Murray SB, Lavender JM.   +6 more
europepmc   +1 more source

Balancing mechanics and metabolism: Elevational variation in the microanatomy of hummingbird flight muscle

The Anatomical Record, EarlyView.
Abstract Factors varying along elevational gradients impose strong aerodynamic and physiological constraints on powered flight, yet the internal microanatomical variation associated with elevational context in animals under such conditions remains poorly understood.
Juan Camilo Ríos‐Orjuela, Juliana Novoa‐Páramo, Maria Juliana Villalba Patiño, Zayra Viviana Garavito‐Aguilar, Alejandro Rico‐Guevara, Carlos Daniel Cadena   +5 more
wiley   +1 more source

The roles of body ımage, drive for muscularity, and spiritual well-being in the relationship between disordered eating and exercise addiction among sports science students: a moderated model. [PDF]

J Eat Disord
Şahin M, Ayhanci NN, Erdem M, Apak H, Parlak Özer Z, Ilkim M.   +5 more
europepmc   +1 more source

Morphophysiological dynamics of the proximal post‐testicular ducts in Crotalus durissus Linnaeus, 1758 (Squamata: Viperidae)

The Anatomical Record, EarlyView.
Abstract The organization and function of reptilian excurrent ducts remain poorly characterized, particularly in Neotropical snakes. We provide the first integrative morphological, histochemical, immunohistochemical, and ultrastructural analysis of the proximal post‐testicular ducts of Crotalus durissus across reproductive stages.
Flávia Cappuccio de Resende, Gustavo Caldeira Cotta, Clara d' Ávila Fonseca Paiva de Paula Freitas, Leonardo Carvalho, Heloísa Helena Marques Oliveira, Victória Gomes Carvalho Silva, Lívia de Fátima Moreira Silva, Luciana Maria Silva, Samyra Maria dos Santos Nassif Lacerda, Guilherme Mattos Jardim Costa   +9 more
wiley   +1 more source

Between Aesthetics and Health: Disordered Eating, Exercise Addiction, and Body Image in Competitive Bodybuilders. [PDF]

J Funct Morphol Kinesiol
Moro F, Cruccolini I, Mauro M, Rinaldo N, Gualdi-Russo E, Zaccagni L, Toselli S.   +6 more
europepmc   +1 more source

Variable grouping patterns in primates: A test of the better competitor hypothesis in male Verreaux's sifaka (Propithecus verreauxi)

The Anatomical Record, EarlyView.
Abstract Intraspecific variation in social organization (IVSO) within primate populations can arise due to male mating competition. Verreaux's sifaka (Propithecus verreauxi) populations exhibit both single‐male and multi‐male groups, providing an opportunity to examine the relationship between male competitive ability and social organization.
Lemeng Li, Stacey R. Tecot, Rebecca J. Lewis   +2 more
wiley   +1 more source