Results 1 to 10 of about 900 (200)

First record of a tomistomine crocodylian from Australia [PDF]

open access: yesScientific Reports, 2021
Based on the known fossil record, the majority of crocodylians from the Cenozoic Era of Australia are referred to the extinct clade Mekosuchinae. The only extant crocodylians in Australia are two species of Crocodylus.
Jorgo Ristevski   +3 more
doaj   +8 more sources

Roars, Rumbles, and Resonance: A Systematic Review and Meta‐Analysis of Crocodylian Acoustic Signals [PDF]

open access: yesEcology and Evolution
Crocodylians are highly vocal reptiles, possessing a complex acoustic signalling system including vocal and non‐vocal signals used for courtship, mating, mediating conflict, and providing maternal care.
Sonnie A. Flores   +3 more
doaj   +3 more sources

Environmental DNA-based biomonitoring of Cuban Crocodylus and their accompanying vertebrate fauna from Zapata Swamp, Cuba [PDF]

open access: yesScientific Reports, 2023
Crocodylians globally face considerable challenges, including population decline and extensive habitat modification. Close monitoring of crocodylian populations and their habitats is imperative for the timely detection of population trends, especially in
Etiam Pérez-Fleitas   +6 more
doaj   +2 more sources

‘Ear stones’ in crocodylians: a cross-species comparative and ontogenetic survey of otolith structures [PDF]

open access: yesRoyal Society Open Science, 2022
The vestibular system of the inner ear is a crucial sensory organ, involved in the sensation of balance and equilibrium. It consists of three semicircular canals that sense angular rotations of the head and the vestibule that detects linear acceleration ...
Julia A. Schwab   +7 more
doaj   +2 more sources

Novel Alligator Cathelicidin As-CATH8 Demonstrates Anti-Infective Activity against Clinically Relevant and Crocodylian Bacterial Pathogens [PDF]

open access: yesAntibiotics, 2022
Host defense peptides (HDPs) represent an alternative way to address the emergence of antibiotic resistance. Crocodylians are interesting species for the study of these molecules because of their potent immune system, which confers high resistance to ...
Felix L. Santana   +11 more
doaj   +2 more sources

Phylogenetic analysis of a new morphological dataset elucidates the evolutionary history of Crocodylia and resolves the long-standing gharial problem [PDF]

open access: yesPeerJ, 2021
First appearing in the latest Cretaceous, Crocodylia is a clade of semi-aquatic, predatory reptiles, defined by the last common ancestor of extant alligators, caimans, crocodiles, and gharials.
Jonathan P. Rio, Philip D. Mannion
doaj   +3 more sources

Determining whether a phosphatic concretion containing a Cretaceous juvenile crocodylian is a coprolite or a non-fecal concretion [PDF]

open access: yesScientific Reports
Phosphatic concretions in terrestrial settings are often identified as coprolites based upon their biotic contents and high phosphorus levels. However, recent discoveries have shown that non-fecal origins of fossiliferous phosphatic concretions are more ...
Ryan C. Allen   +4 more
doaj   +2 more sources

Expanded phylogeny elucidates Deinosuchus relationships, crocodylian osmoregulation and body-size evolution [PDF]

open access: yesCommunications Biology
Transmarine distribution and gigantism in the Late Cretaceous North American crocodyliform Deinosuchus has been difficult to reconcile with consistently inferred phylogenetic relationships to alligatorids, an otherwise freshwater and smaller-bodied group.
Jules D. Walter   +5 more
doaj   +2 more sources

Population status and genetic assessment of mugger (Crocodylus palustris) in a tropical regulated river system in North India [PDF]

open access: yesScientific Reports
For rewilding the depleted crocodylian populations in India, a targeted ‘one-species one area’ based conservation approach was adopted in the early-1970s.
Surya Prasad Sharma   +4 more
doaj   +2 more sources

Unraveling Population Trend of a Critically Endangered Freshwater Crocodylian, Gharial (Gavialis gangeticus) in the National Chambal Sanctuary, India [PDF]

open access: yesEcology and Evolution
The gharial (Gavialis gangeticus), an endemic freshwater crocodylian species, has shown signs of recovery following a severe population decline, primarily due to concerted conservation efforts initiated in the mid‐1970s.
Surya Prasad Sharma   +3 more
doaj   +2 more sources

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