Results 1 to 10 of about 1,044 (185)

Stomach histology of Crocodylus siamensis and Gavialis gangeticus reveals analogy of archosaur “gizzards”, with implication on crocodylian gastroliths function

open access: yesActa Herpetologica, 2020
Two groups of extant Archosauria, Crocodylia and Neornithes, have two-chambered stomachs and store gastroliths inside their “gizzards”. Morphological similarities of the “gizzards” lead some previous studies to assume that the presence of this structure,
Ryuji Takasaki, Yoshitsugu Kobayashi
doaj   +2 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

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   +2 more sources

First successful nest for the Vulnerable American crocodile Crocodylus acutus population on the west coast of Florida, USA

open access: yesOryx, 2023
The American crocodile Crocodylus acutus occurs across the Americas, with its northernmost distribution being in South Florida, USA. This species has undergone severe declines across its range and is categorized globally as Vulnerable on the IUCN Red ...
Steve Bertone   +4 more
doaj   +1 more source

Natural and Anthropogenic Factors Influencing Nesting Ecology of the American Crocodile in Florida, United States

open access: yesFrontiers in Ecology and Evolution, 2022
Nesting ecology of American crocodiles (Crocodylus acutus) in Florida has been both positively and negatively influenced by anthropogenic and natural factors since the species was placed on the federally endangered species list in 1975.
Frank J. Mazzotti   +6 more
doaj   +1 more source

Boon or Bane? The Significance of Scientific Knowledge and Education Consciousness for Crocodylian Conservation in Malaysia

open access: yesASM Science Journal, 2022
A fundamental scientific apprehension of the exact nature of crocodiles, combined with the awareness through education for these reptiles could provide a crucial opportunity to enhance the conservation efforts in Malaysia.
Paul Rummy, Jessica Rummy
doaj   +1 more source

A new horned crocodile from the Plio-Pleistocene hominid sites at Olduvai Gorge, Tanzania. [PDF]

open access: yesPLoS ONE, 2010
BackgroundThe fossil record reveals surprising crocodile diversity in the Neogene of Africa, but relationships with their living relatives and the biogeographic origins of the modern African crocodylian fauna are poorly understood.
Christopher A Brochu   +3 more
doaj   +1 more source

Lower Eocene Footprints from Northwest Washington, USA. Part 1: Reptile Tracks

open access: yesGeosciences, 2019
Lower Eocene fluvial strata in the Chuckanut Formation preserve abundant bird and mammal tracks. Reptile trace fossils include footprints from a small turtle (ichnogenus Chelonipus), and several Crocodylian trackways that consist of irregularly spaced ...
George E. Mustoe
doaj   +1 more source

Differences in distress: Variance and production of American Crocodile (Crocodylus acutus) distress calls in Belize

open access: yesEcology and Evolution, 2020
Acoustic communication of American Crocodiles (Crocodylus acutus) is relatively understudied. Our overall aim was to determine the acoustic structure of wild American Crocodile distress calls, distinguish call differences among size classes (hatchling ...
Miriam Boucher   +2 more
doaj   +1 more source

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