Neck length and mean arterial pressure in the sauropod dinosaurs
- Environmental Science, GeographyJournal of Experimental Biology
It is demonstrated that the siphon principle is able to explain how blood was able to adequately perfuse the sauropod brain, and maximum neck length in the fossil record may therefore be due to the siphons height limit.
Physiological essay on Gulliver’s Travels: a correction after three centuries
- Philosophy, MedicineThe Journal of Physiological Sciences
Gulliver’s Travels by Jonathan Swift, published in 1726, was analyzed from the viewpoint of scaling in comparative physiology and found that those of 42 Lilliputians and 1/42 Brobdingnagians are enough to support the energy of Gulliver.
Cardiovascular Physiology of Dinosaurs.
- Biology, Environmental SciencePhysiology
Skeletal stature and nutrient foramen size in fossil femora provide direct evidence of a high arterial blood pressure, a large four-chambered heart, a high aerobic metabolic rate, and intense locomotion in sauropod dinosaurs.
An Evolutionary Cascade Model for Sauropod Dinosaur Gigantism - Overview, Update and Tests
- Environmental Science, BiologyPloS one
This review focuses on the sauropod gigantism ECM, providing an updated version based on the contributions to the PLoS ONE sauropods collection and on other very recent published evidence.
The Articulation of Sauropod Necks: Methodology and Mythology
- BiologyPloS one
Osteologically, the pronounced opisthocoely and conformal central and zygapophyseal articular surfaces strongly constrain the reconstruction of the cervical vertebral column; Behaviorally, modern vertebrates generally assume characteristic neck postures which are close to the intrinsic curvature of the undeflected neck.
An alternative sauropod physiology and cardiovascular system that eliminates high blood pressures
- Environmental Science
It is proposed here that sauropods could have browsed high by sitting, squatting or even kneeling on their hind legs to elevate their heads without a sharp bend at the base of the neck.
Biology of the Sauropod Dinosaurs: Understanding the Life of Giants
- Environmental Science
This book discusses the evolution of Sauropod Biology and the Evolution of Gigantism, and the role of carbon Isotope Analysis on Teeth, Bones, and Plants.
Biology of the sauropod dinosaurs: the evolution of gigantism
- Environmental ScienceBiological reviews of the Cambridge Philosophical Society
There is no evidence, however, that resource availability and global physicochemical parameters were different enough in the Mesozoic to have led to sauropod gigantism.
The socio-sexual behaviour of extant archosaurs: implications for understanding dinosaur behaviour
- Geography, Environmental Science
It is proposed that for the majority of dinosaurs there was no post-hatching care provided which would have allowed adults energy acquisition that would otherwise have been required for defence and provisioning to be redirected towards growth and increased fecundity, both traits for which there is fossil evidence.
The physiology of dinosaurs: circulatory and respiratory function in the largest animals ever to walk the earth.
- Environmental ScienceRespiratory care
Diverse lines of evidence suggest that the giant sauropods were probably warm-blooded and metabolically active when young, but slowed their metabolism as they approached adult size, which diminished the load on the circulatory system.
SHOWING 1-2 OF 2 REFERENCES
Scientific safari; the circulation of the giraffe.
- MedicineSouth African medical journal = Suid-Afrikaanse tydskrif vir geneeskunde