Results 131 to 140 of about 31,258 (246)
Clade‐wide morphological and functional variation of the sauropsid columella
The Anatomical Record, EarlyView.Abstract The columella (=stapes) is the middle ear bone of reptiles that transmits vibrations from the environment to the inner ear. It has been shown to exhibit extensive interspecific morphological disparity in several clades; however, its morphological variation and associated functional consequences remain poorly described.
John Peacock +4 more
wiley +1 more source
Tracing the evolutionary history of the morpho‐anatomy of baculum in primates
The Anatomical Record, EarlyView.Abstract Animal morphology reflects both evolutionary history and present‐day adaptation. Male mammal copulatory structures such as the baculum (penile bone) are ideal for studying these processes because of their complexity and high interspecific variability. In primates, however, research has focused mostly on baculum length.
Federica Spani +3 more
wiley +1 more source
The fossil record stays silent: Confusions and conundrums for hominin pelvis evolution
The Anatomical Record, EarlyView.Abstract The evolution of the hominin pelvis is commonly modeled as a series of stages driven largely by the requirements of bipedal locomotion, reproduction, thermoregulation, and pelvic floor muscular support. These patterns are complicated by variation in canal dimensions in relationship with different changes in overall pelvic breadths. To quantify
Helen K. Kurki, Cara M. Wall‐Scheffler
wiley +1 more source
The Anatomical Record, EarlyView.Abstract Maternal and neonatal morbidity and mortality have declined dramatically during the last century. Historical data are therefore important sources to study the evolutionary selection pressures related to childbirth and how they have fluctuated over time.
Mirella Woodert +7 more
wiley +1 more source
Asymmetric niche partitioning in large omnivores in response to anthropogenic disturbances within subarctic ecosystems. [PDF]
J Anim EcolBrown L +5 more
europepmc +1 more source
The Anatomical Record, EarlyView.Abstract Hyperodapedontine rhynchosaurs possessed a unique oral apparatus, long interpreted as an adaptation for processing abrasive and resistant plant material. However, the microanatomical and histological evidence supporting this interpretation remains poorly documented.
Caio A. Scartezini +3 more
wiley +1 more source
Occurrence of <i>Trichinella</i> spp. infestations in black bears in Quebec, Canada. [PDF]
J Vet Diagn InvestKrückemeier S +2 more
europepmc +1 more source
Bite force estimates and morphological correlations of jaw muscles in parrots
The Anatomical Record, EarlyView.Abstract Parrots (Order: Psittaciformes) are renowned for their high bite force (BF) and morphological correlates thereof, including a highly mobile skull and two unique mandibular adductor muscles—m. pseudomasseter and m. ethmomandibularis, with the former being hypothesized to increase force output.
Ana Carolina L. Faillace +3 more
wiley +1 more source
ATS BEAR Cage: 10 years of building education to advance research with innovation, competition, and fun. [PDF]
ATS SchKirkness JP +6 more
europepmc +1 more source
Arthroscopy, EarlyView.Purpose To determine if distraction distance changes on an axial traction examination between the time zero capsular repair state and a later follow‐up traction examination in patients with staged bilateral hip arthroscopies for femoroacetabular impingement syndrome.
Benjamin T. Johnson +6 more
wiley +1 more source