Results 81 to 90 of about 6,741 (260)
The Anatomical Record, EarlyView.Abstract Last year, we challenged the view that large‐bodied theropod dinosaurs such as Tyrannosaurus rex resembled primates in cognition and behavior, a proposition made by Herculano‐Houzel in 2023. More recently, Jensen et al. have criticized our work on this topic, raising methodological and conceptual issues.
Kai R. Caspar +5 more
wiley +1 more source
Diets of Amazonian crocodilians
, 1987 Caiman crocodilus, Melanosuchus niger and Paleosuchus palpebrosus, which occur around rivers and lakes, have similar diets: small individuals eat invertebrates and large individuals eat invertebrates and fish.
Lima, Albertina Pimental +2 more
core +1 more source
, 2014 Crocodilians are by their very nature difficult animals to study. However, research on wild animals is essential for the development of reliable long-term management.
Franklin, Craig E +5 more
core +2 more sources
Sound localization circuits in reptiles
Frontiers in Amphibian and Reptile ScienceLocation of sound sources is a fundamental task of the auditory system. Recent studies have shown that land vertebrates employ an array of sound localization strategies.
Dawei Han +4 more
doaj +1 more source
Why the long face? The mechanics of mandibular symphysis proportions in crocodiles. [PDF]
PLoS ONE, 2013 Crocodilians exhibit a spectrum of rostral shape from long snouted (longirostrine), through to short snouted (brevirostrine) morphologies. The proportional length of the mandibular symphysis correlates consistently with rostral shape, forming as much as ...
Christopher W Walmsley +8 more
doaj +1 more source
Sequential segmental analysis of the crocodilian heart [PDF]
Journal of Anatomy, 2017 AbstractDifferences between hearts of crocodilians and those of mammals and birds are only partly understood because there is no standardised approach and terminology for describing cardiac structure. Whereas most reptiles have an undivided ventricle, crocodilians have a fully septated ventricle.
Andrew C. Cook +7 more
openaire +4 more sources
Gonadal development in scorpion mud‐turtles, Kinosternon scorpioides, in a controlled environment
The Anatomical Record, EarlyView.Stage 20 was identified as the critical point for gonadal differentiation in Kinosternon scorpioides, providing key insights into sex determination. These findings enhance conservation strategies by supporting reproductive management and population viability in both in situ and ex situ programs. Abstract Research on gonadal development including sexual
Brenda Braga +4 more
wiley +1 more source
Does the left aorta provide proton-rich blood to the gut when crocodilians digest a meal?
, 2019 Article measuring blood parameters in the left aortae and atria of crocodilians. The findings do not support the hypothesis that a R–L shunt serves to deliver CO2 for the gastrointestinal system after feeding in ...
Wang, Tobias +5 more
core +1 more source
Parentage test in broad-snouted caimans (Caiman latirostris, Crocodylidae) using microsatellite DNA
Genetics and Molecular Biology, 2009 In this study, microsatellite markers, developed for Alligator mississipiensis and Caiman latirostris, were used to assess parentage among individuals from the captive colony of Caiman latirostris at the University of São Paulo, in Piracicaba, São Paulo,
Rodrigo B. Zucoloto +4 more
doaj
Presence of chitinase enzymes in crocodilians
Acta Herpetologica, 2014 Chitin is an abundant bio-polymer present as a structural component of many organisms such as arthropods, nematodes, mollusks, insects, and fungi, among others.
Pablo Siroski +4 more
doaj +1 more source