Results 131 to 140 of about 914,664 (294)

Redescription of †Eobrasilia coutoi (Metatheria: Polydolopimorphia), a unique sclerocarpophagous metatherian from the Palaeogene of South America: Systematic affinities, and paleoecological and evolutionary implications

The Anatomical Record, EarlyView.
Abstract The ‘Palaeogene strata’ of the Itaboraí Basin (upper Paleocene‐lower Eocene), Southeastern Brazil, has preserved 29 genera and almost 50 species of metatherians (about 65% of its mammalian diversity). Among them, Eobrasilia coutoi Simpson, 1947 is the most enigmatic due to its quite fragmentary nature.
Leonardo M. Carneiro, Hugo Bampi, Ana C. Bernardes‐Dias, Lidiane Asevedo, João P. P. Araújo, Matheus R. Arêas, Alessandra S. Machado, Ricardo T. Lopes, Rafael C. Silva, Marina B. Soares, Gustavo R. Oliveira   +10 more
wiley   +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   +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   +1 more source

First evidence of a mandibular crest in Brasileodactylus Kellner, 1984 (Pterosauria, Pteranodontoidea, Anhangueridae), with comments on pterosaur headcrests

The Anatomical Record, EarlyView.
Abstract Brasileodactylus araripensis Kellner, 1984, is a toothed pterosaur from the Lower Cretaceous Romualdo Formation of the Araripe Basin, Brazil. Traditionally regarded as crestless, the species has been central to debates on anhanguerid taxonomy, as most members of the clade possess well‐developed sagittal cranial or dentary crests.
Anderson da Silva Nascimento, Rubi Vargas Pêgas, Alessandra Silveira Machado, Ricardo Tadeu Lopes, Fabiana Rodrigues Costa   +4 more
wiley   +1 more source

Sexual Dimorphism in Maxillary Canine Dimensions among Kosovo Population: A CBCT Analysis

Acta Stomatologica Croatica
Dental sexual dimorphism, particularly in maxillary canines, is one of the most reliable markers for sex determination in forensic and anthropological contexts.
Vigan Aliu, Jehona Reçica Ahmedi
doaj   +1 more source

Hormonal control and signaling of the testis of the bat Molossus molossus during the processes of testicular maturation, regression, and recrudescence

The Anatomical Record, EarlyView.
Abstract Molossus molossus, a species of neotropical bat belonging to the Molossidae family, has an annual reproductive cycle that includes two peaks of spermatogenic activity, one in April and another in September, and a period of total testicular regression in December.
Emília M. Soares, Juliana F. Ferraz, Cornélio S. Santiago, Larissa P. R. Venâncio, Arlindo G. Macedo‐Junior, Sebastião R. Taboga, Mateus R. Beguelini   +6 more
wiley   +1 more source

In Response to: Sexual dimorphism

Journal of Oral and Maxillofacial Pathology, 2019
Kokila, Ganganna, Monalisa, Wakambam, Sharma, Hidangmayum Denish, Gopinathan, Pillai Arun, Singh, Okram Manoranjan, Kumaraswamy, Shubha   +5 more
openaire   +3 more sources

Histological Characterization and Comparative Transcriptomic Analysis of Gonads During Early Sex Differentiation in the Northern Snakehead (Channa argus)

Animal Research and One Health, EarlyView.
This study delineates the early sex differentiation timeline in the northern snakehead (Channa argus). These findings provide a foundation for future sex‐control breeding in this economically important species. ABSTRACT The northern snakehead (Channa argus) is an economically important aquaculture species in China.
Chaonan Sun, Donglei Sun, Haishen Wen, Xin Qi, Chao Li, Xiaoyan Zhang, Yun Li   +6 more
wiley   +1 more source

Sheep Horn Development Revealed by Multi‐Tissue and Cross‐Species Transcriptomic Analysis

Animal Research and One Health, EarlyView.
Multi‐tissue and cross‐species transcriptomics with allele‐specific expression show sheep horns are a composite organ integrating epidermal and osteogenic programs. Conserved horn gene modules and cis‐regulatory variation fine‐tune expression networks underlying horn development and size (small scurs vs. large spiral horns).
Hao Li, Yuchen He, Yangshuo Hu, Naominggaowa, Huaiqiang Yang, Zhu Meng, Fei Liu, Shiwen Zhang, Yi Jin, Mingxing Chu, Zhangyuan Pan   +10 more
wiley   +1 more source

Sex Does Not Impact Outcomes of Arthroscopic Treatment of Hip Labral Tears: A Systematic Review and Meta‐analysis

Arthroscopy, Sports Medicine, and Rehabilitation, EarlyView.
Purpose To conduct a systematic review and meta‐analysis to evaluate sex‐specific outcomes after arthroscopic treatments for hip labral tears. Methods A review of literature was conducted according to the Preferred Reporting Items for Systematic Reviews and Meta‐Analyses guidelines.
Anne Gordon, Jacob Adams, Reed Coda, Grace Tideman, Damon Mar, Lisa Vopat, Bryan G. Vopat, John Paul Schroeppel, Rachel Long, Sterre Van Den Anker   +9 more
wiley   +1 more source