Results 41 to 50 of about 728 (153)

Three-dimensional anatomy of the ostrich (Struthio camelus) knee joint [PDF]

PeerJ, 2014
The three-dimensional anatomy of the ostrich (Struthio camelus) knee (femorotibial, femorofibular, and femoropatellar) joint has scarcely been studied, and could elucidate certain mechanobiological properties of sesamoid bones.
Kyle P. Chadwick, Sophie Regnault, Vivian Allen, John R. Hutchinson   +3 more
doaj   +2 more sources

Ancient DNA Reveals Late Pleistocene Existence of Ostriches in Indian Sub-Continent.

PLoS ONE, 2017
Ancient DNA (aDNA) analysis of extinct ratite species is of considerable interest as it provides important insights into their origin, evolution, paleogeographical distribution and vicariant speciation in congruence with continental drift theory. In this
Sonal Jain, Niraj Rai, Giriraj Kumar, Parul Aggarwal Pruthi, Kumarasamy Thangaraj, Sunil Bajpai, Vikas Pruthi   +6 more
doaj   +1 more source

Sex determination in ratite and non ratite birds by molecular method

The Indian Journal of Animal Sciences, 2016
In spite of number of methods for sex determination in birds, it is very difficult to distinguish sex especially in ratite birds due to lack of sexual dimorphism. Chromodomain helicase DNA binding 1 gene (CHD 1) is the choice of gene for gender differentiation using PCR based molecular method. In present study, non ratite CHD gene specific primers viz.
RISHABH BHATT, A C PATEL, T K JISHA, SHEFALI MACWAN, RIDHDHI THAKER, D N RANK   +5 more
openaire   +2 more sources

Cardiac morphological and morphometric analysis of Ardea alba

The Anatomical Record, EarlyView.
Abstract Ardea alba (Linnaeus, 1758) is a widely distributed heron species whose cardiovascular morphology remains poorly described. This study aimed to characterize the cardiac morphology and morphometry of adult A. alba. Ten specimens were analyzed using radiographic, morphometric, histological, scanning electron microscopy, and three‐dimensional ...
Julia Vaz Feio, Max Alex Santos Ferreira, Elane Guerreiro Giese, Érika Branco, Antônio Basílio Guerreiro Junior, Ana Rita de Lima   +5 more
wiley   +1 more source

Hematological, morphological and morphometric characteristics of blood cells from rhea, Rhea Americana (Struthioniformes: Rheidae): a standard for Brazilian birds

Brazilian Journal of Biology
Blood exams are an indispensable tool in bird medicine. This study aimed at describing values and aspects of rheas' hematology, Rhea americana, as well as analyzing the morphology and morphometry of all blood cells.
S. S. M. Gallo, N. B. Ederli, M. O. Bôa-Morte, F. C. R. Oliveira   +3 more
doaj   +1 more source

Exceptional preservation informs the paleobiology of tapinocephalid dinocephalians

The Anatomical Record, EarlyView.
Abstract The tapinocephalid dinocephalian Moschops is one of the most iconic taxa of the middle Permian, yet its paleobiology remains one of the least well‐known. Here, we address some aspects of paleoneurology and paleobiology of Moschops using CT scanning of four well preserved skulls from the upper Abrahamskraal Formation of South Africa. Two of the
Julien Benoit, Lars Schmitz, Kenneth D. Angielczyk, Luke A. Norton, Andrew D. Bolton, Adam Midzuk, Roger M. H. Smith   +6 more
wiley   +1 more source

Relationship between carina size and sternum morphology in birds reflects physical constraints of body size and flight style

Journal of Anatomy, EarlyView.
Sternum morphology varies among birds and is a function of body mass and order. The area of the sternum is inversely related to the area of the keel suggesting that the increase in bone mass associated with a large keel has been mitigated by a reduction in bone mass of the sternum.
D. C. Deeming
wiley   +1 more source

Assessment of Minimum Stable Areas for Young Ostriches According to Animal Welfare Legislation

Animals
Regarding the ongoing global development of commercial ostrich husbandry, it is necessary to establish science-based recommendations for the appropriate treatment and welfare of ostriches.
Sabrina Rückschloss, Robin N. Schüttpelz, Rüdiger Korbel   +2 more
doaj   +1 more source

Sydney Phylogenetics Workshop: Lessons From the Past 15 Years

Ecology and Evolution, Volume 16, Issue 9, September 2026.
Phylogenetic analysis forms an important component of research in the life sciences. The Sydney Phylogenetics Workshop has offered an annual training opportunity suitable for early career researchers. In this article, we provide an outline of the content and format of the workshop, the challenges associated with running such an event on a minimal ...
Simon Y. W. Ho
wiley   +1 more source

Brain shapes of large-bodied, flightless ratites (Aves: Palaeognathae) emerge through distinct developmental allometries

Royal Society Open Science
Comparative neuroanatomical studies have long debated the role of development in the evolution of novel and disparate brain morphologies. Historically, these studies have emphasized whether evolutionary shifts along conserved or distinct developmental ...
Meghan R. Forcellati, Todd L. Green, Akinobu Watanabe   +2 more
doaj   +1 more source