Results 81 to 90 of about 287,376 (294)
Helmeted hornbill cranial kinesis: Balancing mobility and stability in a high‐impact joint
The Anatomical Record, EarlyView.Abstract Prokinesis—in which a craniofacial joint allows the rostrum to move relative to the braincase—is thought to confer diverse advantages in birds, mostly for feeding. A craniofacial joint would, however, be a weak link if cranial stability is important. Paradoxically, we have identified a craniofacial joint in helmeted hornbills (Rhinoplax vigil),
Mike Schindler +8 more
wiley +1 more source
The Anatomical Record, EarlyView.Abstract Scientists have been captivated by the ability to regenerate, focusing on uncovering the mechanisms of epimorphic regeneration and applying them to human medicine. The axolotl (Ambystoma mexicanum) has become the most intensively studied model in tetrapod regeneration research, particularly concerning limb regeneration.
Vivien Bothe, Nadia Fröbisch
wiley +1 more source
Ecological safeguarding and normalized water use of ust-ilimsk wood-industrial complex
RUDN Journal of Ecology and Life Safety, 2010 Nowadays high attention is paid to the ecological problems of cellulose-paper group of enterprises and wood industrial complex as a whole. First of all it is connected with questions of operating optimization of water use and water derivation systems. On
B N Frog, D B Frog, M D Harlamova
doaj
The Anatomical Record, EarlyView.Abstract The study of morphological evolution is fundamentally tied to ontogeny, yet studies of these heterochronic processes in the fossil record are rare. Fossils belonging to an ontogenetic series are difficult to assign to an ontogenetic stage due to inconsistent proxies for skeletal ages, challenging to taxonomically assign due to morphological ...
Erika R. Goldsmith, Michelle R. Stocker
wiley +1 more source
The Anatomical Record, EarlyView.Osteohistological sampling on different bones of theropod dinosaur documents discrepant age record, growth, and metabolism. This could result unprecise paleobiological inferences if samplings are based on single bones. However, multi‐bone sampling can attenuate these discrepancies, helping to infer growth dynamics and physiology of these extinct ...
Geovane Alves de Souza +3 more
wiley +1 more source
How the Turtle Lost its Shell: Sino-Tibetan Divination Manuals and Cultural Translation [PDF]
, 2018 This article is a pan-Himalayan story about how the turtle, as a cultural symbol within Sino-Tibetan divination iconography, came to more closely resemble a frog.
Poupard, Duncan J
core +1 more source
The critical density for the frog model is the degree of the tree
, 2016 The frog model on the rooted d-ary tree changes from transient to recurrent as the number of frogs per site is increased. We prove that the location of this transition is on the same order as the degree of the tree.Comment: 12 pages; final published ...
Johnson, Tobias, Junge, Matthew
core +1 more source
The Anatomical Record, EarlyView.Abstract The Upper Cretaceous São José do Rio Preto Formation (Bauru Group, southeastern Brazil) has yielded a fragmentary but taxonomically diverse record of titanosaur sauropods, although elements from cervical series remain scarce. Here, we describe a nearly complete sauropod axis from the Vila Ventura Paleontological Area, representing an uncommon ...
Bruno A. Navarro +7 more
wiley +1 more source
Antipredator pheromones in amphibians: a review
Veterinární Medicína, 2006 Specific chemosignals (pheromones) have an important role in the antipredator behaviour in amphibians and other vertebrates. However, relatively little is known about the occurrence of chemical alarm cues just in amphibians.
J. Rajchard
doaj +1 more source
Archaeology in Oceania, EarlyView.ABSTRACT The archaeological site Graman B4 provided one of the first records of substantial dietary change in ancient Australian Aboriginal society. Initial examination of the faunal remains from this site suggested that Late Holocene hunters reduced their focus on high‐ranked kangaroos to increasingly rely on arboreal possums; and that these ...
Loukas George Koungoulos +2 more
wiley +1 more source