Results 51 to 60 of about 3,720 (199)

Widespread recombination, reassortment, and transmission of unbalanced compound viral genotypes in natural arenavirus infections. [PDF]

open access: yes, 2015
Arenaviruses are one of the largest families of human hemorrhagic fever viruses and are known to infect both mammals and snakes. Arenaviruses package a large (L) and small (S) genome segment in their virions.
Chang, Li-Wen   +13 more
core   +3 more sources

Snakes from the Atlantic Rainforest area of Serra do Mendanha, in Rio de Janeiro state, southeastern Brazil: a first approximation to the taxocenosis composition

open access: yesBrazilian Journal of Biology
We studied the species composition of the snake community of Serra do Mendanha, in Rio de Janeiro state, Southeastern Brazil, with an effort of 800 hours/man in different habitats, including undisturbed forest, secondary forest, areas under regeneration,
JAL. Pontes   +3 more
doaj   +1 more source

An Overlooked Habitat‐Dependent Link Between Metabolism and Water Loss in Reptiles

open access: yesIntegrative Zoology, EarlyView.
We measured the gas exchange of six lizard and six snake species, under high and low air humidity, and two intriguing patterns emerged. First, although desert species lose less water via evaporation than similar‐sized mesic species under similar conditions, water loss is virtually the same when each is exposed to its natural conditions.
Shahar Dubiner, Shai Meiri, Eran Levin
wiley   +1 more source

Twenty-eight new and significant departmental reptile records for Paraguay

open access: yesActa Zoológica Lilloana
Twenty-eight new distribution records are reported for twenty-seven species of Paraguayan reptiles. Ten of these species are considered threatened at the national level (6 EN, 2 VU, 2 DD).
Paul Smith   +14 more
doaj   +1 more source

Sex chromosome evolution in snakes inferred from divergence patterns of two gametologous genes and chromosome distribution of sex chromosome-linked repetitive sequences [PDF]

open access: yes, 2016
Molecular phylogenic trees of CTNNB1 gene. This figure shows neighbor-joining trees of CTNNB1 gene with the long alignment for 20 tetrapod species and the short alignment for 26 squamate species.
Chizuko Nishida   +3 more
core   +9 more sources

Synapsids and sensitivity: Broad survey of tetrapod trigeminal canal morphology supports an evolutionary trend of increasing facial tactile specialization in the mammal lineage

open access: yesThe Anatomical Record, Volume 309, Issue 4, Page 864-911, April 2026.
Abstract The trigeminus nerve (cranial nerve V) is a large and significant conduit of sensory information from the face to the brain, with its three branches extending over the head to innervate a wide variety of integumentary sensory receptors, primarily tactile.
Juri A. Miyamae   +4 more
wiley   +1 more source

Epicrates alvarezi (ÁBALOS, BAEZ & NADER, 1964) (SQUAMATA: BOIDAE)

open access: yesRevista Latinoamericana de Herpetología, 2020
Documentamos el primer registro de Epicrates alvarezi en la provincia de San Luis, Argentina. Esta boa arcoiris ha sido categorizada como amenazada por lo que los especimenes hallados aportan valiosa información para la conservación de la fauna chaqueña.
Juan Manuel Pérez Iglesias   +2 more
openaire   +2 more sources

Divergent Paths, Convergent Heads: Morphological Adaptation of Head Shape to Habitat Use and Diet in Snakes

open access: yesJournal of Morphology, Volume 286, Issue 11, November 2025.
Snake head shape is weakly constrained by phylogeny but strongly influenced by ecology. Significant convergence was detected in fossorial and aquatic snakes, while diet mainly drove morphological variation without convergence. ABSTRACT Morphological convergence—where distantly related species evolve similar traits in response to shared ecological ...
David Hudry, Anthony Herrel
wiley   +1 more source

Kumukumu 1, a hilltop site in the Aird Hills: Implications for occupational trends and dynamics in the Kikori River delta, south coast of Papua New Guinea [PDF]

open access: yes, 2014
We report on archaeological excavations undertaken at Kumukumu 1 atop the dense rainforest-clad Aird Hills of the Kikori river delta islands, south coast of Papua New Guinea.
Aplin, Ken   +8 more
core   +3 more sources

Surface Topography and Ultrastructure of the Spectacular Cells in the Eyes of Land and Sea Snakes (Squamata, Reptilia): Functional Adaptations of Micro‐Ornamentation

open access: yesJournal of Morphology, Volume 286, Issue 9, September 2025.
ABSTRACT Although the surface micro‐ornamentation of the scales within the skin of snakes has been the subject of many previous studies, there has been little work done on the spectacle, a protective (keratinised) goggle separated from the underlying cornea by a sub‐spectacular space. The surface ultrastructure of the “Oberhäutchen” of the spectacle is
H. Barry Collin   +6 more
wiley   +1 more source

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