Results 111 to 120 of about 7,856 (239)
Live birth in an archosauromorph reptile
Nature Communications, 2017 Although live birth evolved repeatedly in other clades, it has not been found in archosauromorphs, the group including modern birds and crocodilians. Here, the authors describe a fossilized pregnantDinocephalosaurusfrom ∼245 million years ago, providing ...
Jun Liu +4 more
doaj +1 more source
Anatomy of spinal CSF loss in the American alligator (Alligator mississippiensis)
Journal of Anatomy, Volume 246, Issue 4, Page 575-584, April 2025.India ink introduced into the cranial cerebrospinal fluid (CSF) compartment of Alligator diffuses along the spinal cord and exits the spinal compartment using perineural flow, resulting in a prominent “ink cuff” forming at the base of the spinal nerve. In Alligator, the region of the ink cuff is drained by a small lymphatic vessel.
Hadyn DeLeeuw +5 more
wiley +1 more source
Comparative mortality levels among selected species of captive animals [PDF]
We present life tables by single year of age and sex for groups of animals and for 42 individual mostly mammalian species. Data are derived from the International Species Information System. The survivorship of most of these species has never been mapped
Iliana V. Kohler +2 more
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The wide gape of snakes: A comparison of the developing mandibular symphysis in sauropsids
Journal of Anatomy, EarlyView.Our analysis explores the adaptations at the mandibular symphysis required to allow extreme lower jaw mobility in macrostomate snakes taking a comparative approach. Abstract The origin and evolution of snakes has been marked by the acquisition of many morphological and functional novelties, one of which is the possession of a highly kinetic skull ...
Maricci Basa +3 more
wiley +1 more source
Cytochrome oxidase I DNA barcodes of crocodilians meat selling in Hong Kong
Scientific DataThe crocodilians include true crocodiles, alligators, caimans, and gharial, and the trade of crocodilian products is regulated in accordance with the Convention of Wild Fauna and Flora (CITES). Hong Kong does not have her own wild crocodilians; thus, all
Wai Lok So +9 more
doaj +1 more source
Journal of Anatomy, EarlyView.Lungfish possess a lamellar OE and a primitive VNO called as a recess epithelium (RecE). Among the lungfish V2Rs expressed in both the lamellar OE and the RecE in small individuals, some became restricted to the RecE in large individuals. These results suggest functional separation between the lamellar OE and the RecE is still incomplete in juveniles ...
Shoko Nakamuta +5 more
wiley +1 more source
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 +4 more
wiley +1 more source