“…Another model organism whose sex depends on the X:A ratio, Caenorhabditis elegans, has furthermore to provide for the brief period of spermatogenesis in hermaphrodites (XX) without the benefit of the "male" genes of the sex determination pathway. Many reptiles have no discernible sex determining genes. …”
Enlace del recurso
Enlace del recurso
Enlace del recurso

“…Land snakes target various prey species including insects (arthropods), lizards (reptiles), frogs and toads (amphibians), birds (aves), and rodents (mammals), whereas sea snakes target a single vertebrate class (fishes) and often specialize on specific types of fish. …”
Enlace del recurso
Enlace del recurso
Enlace del recurso

“…No firm zoological grouping of the "cone" curves can be made, on present evidence,—although the 5 fishes used give high-slope curves, 2 amphibians low slopes, reptiles (5) either high or low, birds (2) and anthropoids (2) low-slope "cone" curves. …”
Enlace del recurso
Enlace del recurso

“…Active metabolic suppression in anticipation of winter conditions has been demonstrated in species of mammals, birds, reptiles and amphibians, but not fish. This is because the reduction in metabolic rate in fish is directly proportional to the decrease in water temperature and they appear to be incapable of further suppressing their metabolic rate independently of temperature. …”
Enlace del recurso
Enlace del recurso
Enlace del recurso

“…Since adequate available data is currently restricted to worms, flies and mammals, while for other groups of animals, such as reptiles, fish and birds it is very limited, it is not yet clear whether this is an evolutionary conserved mechanism. …”
Enlace del recurso
Enlace del recurso
Enlace del recurso

“…PRINCIPAL FINDINGS: In this work, a cathelicidin-like antimicrobial peptide named cathelicidin-BF has been purified from the snake venoms of Bungarus fasciatus and its cDNA sequence was cloned from the cDNA library, which confirm the presence of cathelicidin in reptiles. As other cathelicidins, the precursor of cathelicidin-BF has cathelin-like domain at the N terminus and carry the mature cathelicidin-BF at the C terminus, but it has an atypical acidic fragment insertion between the cathelin-like domain and the C-terminus. …”
Enlace del recurso
Enlace del recurso
Enlace del recurso

“…The taxa most represented were: mammals (9), insects (7), reptiles and birds (4). Progne chalybea, a species not previously recorded as being of medicinal use, was cited in the present work, where it is utilized in the treatment of alcoholism. …”
Enlace del recurso
Enlace del recurso
Enlace del recurso

“…These species were classified in 5 taxanomic groups: Molluscs (n = 1), Amphibians (n = 2), Reptiles (n = 2), Birds (n = 10) and Mammals (n = 14). …”
Enlace del recurso
Enlace del recurso
Enlace del recurso

“…Aeromonas hydrophila is the most common Aeromonas species causing infections in human and other animals such as amphibians, reptiles, fish and crustaceans. Pathogenesis of Aeromonas species have been reported to be associated with virulence factors such as lipopolysaccharides (LPS), bacterial toxins, bacterial secretion systems, flagella, and other surface molecules. …”
Enlace del recurso
Enlace del recurso
Enlace del recurso

“…BACKGROUND: The accumulation of repetitive sequences such as microsatellites during the differentiation of sex chromosomes has not been studied in most squamate reptiles (lizards, amphisbaenians and snakes), a group which has a large diversity of sex determining systems. …”
Enlace del recurso
Enlace del recurso
Enlace del recurso

“…Unexpectedly, we also establish that events of Fads1 gene expansion have taken place in birds and reptiles. Finally, a fourth Fads gene (Fads4) was found with an exclusive occurrence in mammalian genomes. …”
Enlace del recurso
Enlace del recurso
Enlace del recurso

“…Despite the increasing success of reptiles as pets, only a few reports over their normal imaging features are currently available. …”
Enlace del recurso
Enlace del recurso
Enlace del recurso

“…Assuming this morphofunctional complex is indicative of diet, then Plesiosuchus would be a specialist feeding on other marine reptiles while Dakosaurus would be a generalist and possible suction-feeder. …”
Enlace del recurso
Enlace del recurso
Enlace del recurso

“…These studies have supported conflicting topologies, positioning turtles as either the sister group to all other reptiles, to lepidosaurs (tuatara, lizards and snakes), to archosaurs (birds and crocodiles), or to crocodilians. …”
Enlace del recurso
Enlace del recurso
Enlace del recurso

“…Interspecific communication between taxonomic groups has so far been reported in some reptiles and mammals, including three primate species. …”
Enlace del recurso
Enlace del recurso
Enlace del recurso

“…Orthoreoviruses have 10 dsRNA genome segments and infect reptiles, birds, and mammals, whereas aquareoviruses have 11 dsRNA genome segments and infect fish. …”
Enlace del recurso
Enlace del recurso
Enlace del recurso

“…Different studies have reported the prevalence of Salmonella in turtles and its role in reptile-associated salmonellosis in humans, but there is a lack of scientific literature related with the epidemiology of Campylobacter in turtles. …”
Enlace del recurso
Enlace del recurso
Enlace del recurso

“…Our sample consisted of giant mammal and reptile taxa (i.e., elephants, rhinos, sauropods) plus erect and non-erect outgroups with thin and thick articular cartilage. …”
Enlace del recurso
Enlace del recurso
Enlace del recurso

“…CONCLUSIONS/SIGNIFICANCE: The dominance of an unusual type of parallel-fibered bone suggests growth rates and, by extension, basal metabolic rates intermediate between that of the extant leatherback turtle, Dermochelys, and those suggested for plesiosaur and ichthyosaur reptiles. Moreover, the microanatomical features of the relatively primitive genus Dallasaurus differ from those of more derived mosasaurines, indicating an intermediate stage of adaptation for a marine existence. …”
Enlace del recurso
Enlace del recurso
Enlace del recurso

“…The human neocortex starts to develop in 6-week-old embryos with the establishment of a primordial cortical organization, which resembles the primitive cortices of amphibian and reptiles. From the 8th to the 15th week of age, new pyramidal neurons, of ependymal origin, are progressively incorporated within this primordial cortex forming a cellular plate that divides its components into those above it (neocortex first layer) and those below it (neocortex subplate zone). …”
Enlace del recurso
Enlace del recurso
Enlace del recurso