Results 71 to 80 of about 125,407 (302)
Sexual dimorphism for juvenile body weight in chickens divergently selected for 8-week body weight
Frontiers in PhysiologyThere is a dearth of literature on the genetics of sexual dimorphism for juvenile body weight in meat-type chickens given its biological and economic relevance. Herein, we report the sexual dimorphism for 4- and 8-week body weights in White Plymouth Rock
Paul B. Siegel, Christa F. Honaker
doaj +1 more source
Sex‐Specific Genetic Architecture of ALS: Evidence of a Female Protective Effect?
Annals of Neurology, EarlyView.Background Amyotrophic lateral sclerosis (ALS) shows sex differences in incidence and age of onset, yet the underlying biological mechanisms remain poorly understood. Methods We investigated sex‐specific genetic architecture in an Italian ALS cohort with whole‐genome sequencing (1,333 ALS cases, 755 controls).
Maurizio Grassano +20 more
wiley +1 more source
An Unparalleled Sexual Dimorphism of Sperm Whale Encephalization [PDF]
, 2016 The sperm whale Physeter macrocephalus (Linnaeus, 1758) is the largest toothed whales and possesses the highest absolute values for brain weight on the planet (together with the killer whale Orcinus orca).
Cozzi, Bruno +4 more
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Can sexual selection drive female life histories? A comparative study on Galliform birds [PDF]
, 2007 Sexual selection is an important driver of many of the most spectacular morphological traits that we find in the animal kingdom (for example see Andersson, 1994). As such, sexual selection is most often emphasized as
A. Ø. MOOERS +39 more
core +2 more sources
Sexual dimorphism in campylobacteriosis
Epidemiology and Infection, 2007 SUMMARYSexual dimorphism in infectious diseases whereby disease incidence is more prevalent in one gender has been reported repeatedly in the scientific literature. Both behavioural and physiological differences have been suggested as a cause of this gender bias but there is a paucity of data to support either of these viewpoints.
N J C, Strachan +5 more
openaire +3 more sources
The Anatomical Record, EarlyView.Abstract The oval window (OW) is an opening connecting the inner and middle ear. Its area has been shown to consistently scale with body mass (BM) in primates, and has been used alongside semi‐circular canal (SCC) size to differentiate Homo sapiens and fossil hominins, including Paranthropus robustus.
Ruy Fernandez, José Braga
wiley +1 more source
Reproductive biology of the eyespot skate atlantoraja cyclophora (Elasmobranchii: Arhynchobatidae) an endemic species of the southwestern atlantic ocean (34ºs - 42ºS) [PDF]
, 2018 Atlantoraja cyclophora is an endemic skate to the continental shelf of the Southwestern Atlantic Ocean (22ºS-47ºS) and a bycatch species in commercial bottom trawl fisheries. The morphometric relationships, the size at maturity and the reproductive cycle
Colonello, Jorge Horacio +3 more
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Sexual Dimorphism in Tilapia [PDF]
Nature, 1965 OBSERVATIONS have shown that the growth rate of males in the Tilapia genus is faster than that of the females.
openaire +1 more source
The Anatomical Record, EarlyView.We describe the functional anatomy of masticatory muscles in nine opossums, finding a generalized anatomical pattern with differences related to skull morphology. Variation in quantitative myological data and estimated bite force was mostly related to size, and the increase in bite force supports dietary diversification associated with size increase ...
Juann A. F. H. Abreu, Diego Astúa
wiley +1 more source
Morphology of the recently re-classified Tasman masked booby (Sula dactylatra tasmani) breeding on the Kermadec Islands [PDF]
, 2010 Once thought to be extinct, the Tasman Booby Sula tasmani has recently been re-classified as a subspecies of the Masked Booby S. dactylatra on the basis of genetic data.
Baird, K. +4 more
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