Results 121 to 130 of about 7,865 (240)

Morphology and osteo‐histology of the weigeltisaurid wing: Implications for aerial locomotion in the world's first gliding reptiles

Journal of Anatomy, EarlyView.
This study investigates the morphology and osteo‐histology of the wing skeleton of the world's first gliding reptiles, showing how it differs from those of extant gliding lizards, yet is also convergently similar. These findings pave the way for future biomechanical studies on the gliding locomotion of these emblematic fossil animals. Abstract The Late
Valentin Buffa, Jordan Gônet, Thomas van de Kamp, Marcus Zuber, Marc Girondot, Eberhard Frey, J.‐Sébastien Steyer, Michel Laurin   +7 more
wiley   +1 more source

Isotope incorporation in broad-snouted caimans (crocodilians)

Biology Open, 2013
Summary The trophic ecology and migration of vertebrate species have been increasingly studied using stable isotope analysis. However, this approach requires knowledge on how dietary isotopic values are reflected in consumers' tissues.
Stephane Caut
doaj   +1 more source

Integrative taxonomy supports DNA barcoding in revealing an abundant cryptic species in the United States Coastal Plain

Journal of Systematics and Evolution, EarlyView.
We present the most densely sampled phylogeny of Carex section Lupulinae to date (107 specimens) and describe herein a new cryptic species for science from the southern United States, which is locally abundant and found in well‐explored and densely populated areas. Combining DNA sequences with morphometric data obtained from 299 samples, we Demonstrate
Étienne Lacroix‐Carignan, Julian R. Starr, Robert F. C. Naczi, Eran S. Kilpatrick, Étienne Léveillé‐Bourret   +4 more
wiley   +1 more source

Clutch size of Caiman latirostris (Crocodylia: Alligatoridae) varies on a latitudinal gradient [PDF]

, 2009
The distribution of the Broad-Snouted Caiman (Caiman latirostris) ranges from 5°S to 32°S. Thus, caiman populations are exposed to different climatic conditions, and this latitudinal gradient could affect aspects of their reproduction.
Piña, Carlos Ignacio, Simoncini, Melina Soledad, Siroski, Pablo Ariel   +2 more
core  

Pinopsin Regulates Melatonin Production and Daily Locomotor Activity: Functional Insights From Gene‐Edited Xenopus Tadpoles

Journal of Pineal Research, Volume 78, Issue 2, March 2026.
ABSTRACT Circadian rhythm alignment depends on environmental light detection via opsins. Pinopsin, originally identified in the pineal organ of birds and later in amphibian pineal complex and eyes, may play a role in this process, though its function has not been genetically tested.
Neda Heshami, Ricardo D. Romero, Flavio S. J. de Souza, Gabriel E. Bertolesi, Sarah McFarlane   +4 more
wiley   +1 more source

Pre‐oviposition development of the brown anole (Anolis sagrei)

Developmental Dynamics, Volume 255, Issue 2, Page 145-167, February 2026.
Abstract Background The brown anole, Anolis sagrei, has emerged as a representative squamate species for developmental studies during the past decades. Novel functional tools have been established to manipulate embryogenesis through genome editing or the introduction of small molecule inhibitors, and their effective use requires a thorough ...
Antonia Weberling, Natalia A. Shylo, Bonnie K. Kircher, Hannah Wilson, Melainia McClain, Marta Marchini, Katherine B. Starr, Thomas J. Sanger, Florian Hollfelder, Paul A. Trainor   +9 more
wiley   +1 more source

Does ecology predict taxonomy? How ecological differentiation can be used to spatially infer intraspecific diversity

Methods in Ecology and Evolution, Volume 17, Issue 2, Page 518-530, February 2026.
Abstract Assessing the true dimension of biodiversity is a major challenge. Many species hide within them a diversity that is now being uncovered using molecular data. However, population genetic studies tend to be resource‐consuming and more difficult to apply to a broader range of taxa, limiting scalability.
Armand Rausell‐Moreno, Virgilio Gómez‐Rubio, Jesús Muñoz   +2 more
wiley   +1 more source

Tooth–bone attachment tissue is produced by cells with a mixture of odontoblastic and osteoblastic features in reptiles

Journal of Anatomy, Volume 248, Issue 2, Page 251-268, February 2026.
Tooth attachment in vertebrates ranges from ligament‐based anchorage in mammals to direct fusion in many reptiles. In the veiled chameleon, we identified a transient cell population—termed ankyloblasts—at the tooth‐bone interface. These cells exhibit both odontoblast‐ and osteoblast‐like features.
M. Šulcová, J. Dumková, B. Hutečková, M. Kavková, V. Parobková, O. Zahradníček, J. Křivánek, I. Adameyko, J. Kaiser, T. Zikmund, A. S. Tucker, M. Buchtová   +11 more
wiley   +1 more source

Conquering the crush: A novel tool for holding crocodilian jaws open

Wildlife Society Bulletin
Crocodilians have diverse snout shapes ranging from the long, narrow snouts of the Indian gharial (Gavialis gangeticus) to the broad snout of the American alligator (Alligator mississippiensis).
Miriam Boucher, Thomas R. Rainwater, Michael Stoner, Luis Sigler, Stefanie L. Whitmire, James T. Anderson   +5 more
doaj   +1 more source

Alligator Diet in Relation to Alligator Mortality on Lake Griffin, FL [PDF]

, 2007
Alligator mississippiensis (American Alligators) demonstrated low hatchrate success and increased adult mortality on Lake Griffin, FL, between 1998 and 2003.
Carbonneau, Dwayne A., Percival, H. Franklin, Rice, Amanda Nicole, Ross, J. Perran, Woodward, Allan R.   +4 more
core