Results 61 to 70 of about 1,308 (184)

Clade‐wide morphological and functional variation of the sauropsid columella

The Anatomical Record, EarlyView.
Abstract The columella (=stapes) is the middle ear bone of reptiles that transmits vibrations from the environment to the inner ear. It has been shown to exhibit extensive interspecific morphological disparity in several clades; however, its morphological variation and associated functional consequences remain poorly described.
John Peacock, Serjoscha W. Evers, Tiago R. Simões, Garth M. Spellman, Daniel J. Field   +4 more
wiley   +1 more source

Behaviours of farmed saltwater crocodiles (Crocodylus porosus) housed individually or in groups

Frontiers in Veterinary Science
Saltwater crocodiles (Crocodylus porosus) are farmed in Australia primarily for their skins and meat. Commercially, they are raised in group pens as hatchlings and grower crocodiles and then moved to unitised (individual) pens for the final finishing ...
Dana L. M. Campbell, Leisha Hewitt, Caroline Lee, Charlotte A. Timmerhues, Alison H. Small   +4 more
doaj   +1 more source

Field and experimental evidence of a new caiman trypanosome species closely phylogenetically related to fish trypanosomes and transmitted by leeches

International Journal for Parasitology: Parasites and Wildlife, 2015
Trypanosoma terena and Trypanosoma ralphi are known species of the South American crocodilians Caiman crocodilus, Caiman yacare and Melanosuchus niger and are phylogenetically related to the tsetse-transmitted Trypanosoma grayi of the African Crocodylus ...
Bruno R. Fermino, Fernando Paiva, Priscilla Soares, Luiz Eduardo R. Tavares, Laerte B. Viola, Robson C. Ferreira, Robinson Botero-Arias, Cátia D. de-Paula, Marta Campaner, Carmen S.A. Takata, Marta M.G. Teixeira, Erney P. Camargo   +11 more
doaj   +1 more source

Exploring the cranial morphology and possible convergences of Triassic non‐crocodylomorph pseudosuchians (Archosauria: Pseudosuchia) with other sauropsids through linear morphometrics

The Anatomical Record, EarlyView.
Abstract Triassic pseudosuchians had highly diversified cranial morphologies. These archosaurs occupied diverse ecological roles, ranging from terrestrial predators and herbivores to semiaquatic ambush predators and possible waders. Here, we apply linear cranial morphometrics to assess possible convergences with other sauropsids from the clades ...
Rafael Terras, Rodrigo Temp Müller, Leonardo Kerber, Mirian Carbonera   +3 more
wiley   +1 more source

A transitional desmosome/tonofibril network may relay mechanical strain to epidermal nerve terminals with high fidelity and sensitivity in the Cuban crocodile (Crocodylus rhombifer): an ultrastructural study

Frontiers in Cell and Developmental Biology
BackgroundCrocodilians are well endowed with multiple cutaneous receptors and specializations, such as integumentary sensory organs (ISOs), which provide formidable mechanical sensitivity despite their protected shield.
Karl-Gunnar Melkersson, Monika Hodik, Karin Staxäng, Pierre Hakizimana, Hao Li, Helge Rask-Andersen   +5 more
doaj   +1 more source

Examination of Crocodilian Leather Goods: A Case Study in Forensic Biology and Merchandise Investigation

Теория и практика судебной экспертизы, 2017
Examination of leather items (clutches, man-purses, suitcases, and briefcases) using methods of forensic biology and merchandise investigation revealed their outer parts to be made of crocodile and alligator belly skin, and their lining – of textiles and
T. V. Perfilova, O. F. Chernova
doaj   +1 more source

Biophysical processes of morphogenesis in lizard lungs

Developmental Dynamics, EarlyView.
Abstract Background The lungs of squamate reptiles (lizards and snakes) are highly diverse, exhibiting single chambers, multiple chambers, transitional forms with two to three chambers, along with a suite of other anatomical features, including finger‐like epithelial projections into the body cavity known as diverticulae.
Kaleb Hill, Aaron H. Griffing, Michael A. Palmer, Bezia Lemma, Aria S. Lupo, Tony Gamble, Natalia A. Shylo, Andrej Košmrlj, Paul A. Trainor, Celeste M. Nelson   +9 more
wiley   +1 more source

Oogenesis and germinal bed morphology of the brown anole (A. sagrei)

Developmental Dynamics, EarlyView.
Abstract Background The brown anole is a model species of the genus Anolis, a squamate (encompassing lizards and snakes) group widely studied in evolutionary, behavioral, and developmental biology. Full genome annotation, the establishment of gene editing techniques, and comprehensive description of reproductive tract morphology and embryogenesis in ...
Bonnie K. Kircher, Antonia Weberling, Erin J. Vance, Natalia A. Shylo, Katherine Starr, Zoe B. Griffin, Hannah Wilson, Melainia McClain, Florian Hollfelder, Suzannah A. Williams, Thomas J. Sanger, Richard R. Behringer, Paul A. Trainor   +12 more
wiley   +1 more source

Mammalian Osteoderm Ultrastructure in the Armored Acomys Spiny Mouse Tail

Small, EarlyView.
The ultrastructure of armored platelets – termed osteoderms – in the tail skin of Acomys cahirinus spiny mice is characterized using 2D and 3D microscopy methods. The imbricated structure is composed of calcium phosphate biomineral and has select structural elements that are bone‐like and tooth‐like in nature.
Joseph Deering, Malcolm Maden, Marc D. McKee   +2 more
wiley   +1 more source

Constitutive Innate Immunity and Systemic Responses to Infection of the American Alligator (Alligator mississippiensis)

Animals
Uninfected alligators (Alligator mississippiensis) exhibited high constitutive levels of hepatic gene expression related to immune function, whereas the highest-expressed hepatic genes of uninfected mice were related to metabolism.
Mark Merchant, Matthew Hebert, Anna C. Salvador, Jennifer Berken, Thomas Boverie, Mary E. White   +5 more
doaj   +1 more source