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FEMORAL DIMENSIONS AND BODY SIZE OF ALLIGATOR MISSISSIPPIENSIS: ESTIMATING THE SIZE OF EXTINCT MESOEUCROCODYLIANS
TLDR
Femur size may be reduced relative to body size in Deinosuchus, which may be associated with more strictly aquatic habits than in alligators, and the total length estimated for Pristichampsus is much larger than the length of the skeleton, indicating a relatively longer femur in this form, perhaps reflecting a more terrestrial lifestyle.
Effects of long-term corticosterone implants on growth and immune function in juvenile alligators, Alligator mississippiensis.
TLDR
It is demonstrated that exogenous corticosterone can mimic the effects of prolonged stress in juvenile alligators and histological examination of the spleen revealed a significant depletion of lymphoid cells in alligators treated with the highest dose of hormone.
The alligator gut microbiome and implications for archosaur symbioses
TLDR
Evidence for previously unrecognized host-microbiome associations along the gastrointestinal tract from the American alligator is provided, a crown archosaur with shared ancestry to extinct taxa, including dinosaurs.
Multiple paternity and mating patterns in the American alligator, Alligator mississippiensis
TLDR
There was no significant correlation between genetic relatedness of nesting females and pairwise nest distances, indicating that females in this sample that nested close to one another were no more related than any two nesting females chosen at random.
Atmospheric oxygen level affects growth trajectory, cardiopulmonary allometry and metabolic rate in the American alligator (Alligator mississippiensis)
TLDR
It is suggested that, despite compensatory cardiopulmonary remodelling, growth of hypoxic alligators is constrained by low atmospheric oxygen supply, which may limit their food utilisation capacity, and the combination of elevated metabolism and low cost of breathing in hyperoxia alligators allows for a greater proportion of metabolised energy to be available for growth.
Antibacterial properties of serum from the American alligator (Alligator mississippiensis).
Seasonal acclimatisation of muscle metabolic enzymes in a reptile (Alligator mississippiensis)
TLDR
Alligators compensated for lower winter temperatures by increasing enzyme activities, and the activities of cytochrome c oxidase and lactate dehydrogenase were significantly greater in winter compared with summer at all assay temperatures.
Specialized stem cell niche enables repetitive renewal of alligator teeth
TLDR
Tooth renewal in a crocodilian model, the American alligator, which has well-organized teeth similar to mammals but can still undergo life-long renewal is studied, to learn how to stimulate growth of adult teeth in mammals.
Alligator osteoderms as a source of labile calcium for eggshell formation
TLDR
Scute (osteoderm) X-ray density was significantly greater in females with ripe ovarian follicles compared with those that had recently laid or contained heavily calcified eggs within their oviducts, suggesting that the scutes play a role in Ca storage during egglay.
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