Results 41 to 50 of about 314 (145)

Beyond mammals: the evolution of chewing and other forms of oropharyngeal food processing in vertebrates

open access: yesBiological Reviews, Volume 101, Issue 3, Page 1406-1462, June 2026.
ABSTRACT Oropharyngeal food processing exhibits a remarkable diversity among vertebrates, reflecting the evolution of specialised ‘processing centres’ associated with the mandibular, hyoid, and branchial arches. Although studies have detailed various food‐processing strategies and mechanisms across vertebrates, a coherent and comprehensive terminology ...
Daniel Schwarz   +6 more
wiley   +1 more source

FIGURE 1 in A second species of Brasilotyphlus (Amphibia: Gymnophiona: Caeciliidae) from Brazilian Amazonia

open access: yes, 2009
FIGURE 1. Map showing the distribution of Brasilotyphlus; circle 1 represents the type-locality of B. braziliensis, circle 2 is the locality of an additional specimen of B. braziliensis MZUSP 63097, square 3 is the type-locality of B.
Hoogmoed, Marinus S.   +2 more
core   +1 more source

FIGURE 2 in A new species of Indotyphlus Taylor (Amphibia: Gymnophiona: Caeciliidae) from the Western Ghats, India

open access: yes, 2004
FIGURE 2. Photographs of Indotyphlus maharashtraensis, showing whole adult (upper) and lateral view of head of same specimen (lower left) in life, and ventral view of terminus of paratopotype male BNHS 4223 in preservation (lower right).Published as part
Giri, Varad (5192308)   +5 more
core   +1 more source

Notes on the Vertebrates of northern Pará, Brazil: a forgotten part of the Guianan Region, III. A new species of Microcaecilia (Amphibia: Gymnophiona: Caeciliidae) [PDF]

open access: yesBoletim do Museu Paraense Emílio Goeldi. Ciências Naturais, 2011
A new species of Microcaecilia is described from the municipality of Óbidos, state of Pará, in the Brazilian part of theGuianan Region. The new species has a high number of secondary annuli, monocuspid vomeropalatine teeth, and othercharacteristics that ...
Adriano Oliveira Maciel   +1 more
doaj  

Amphibian Intestine Allometry

open access: yesJournal of Morphology, Volume 287, Issue 5, May 2026.
Total intestine length scales hyper‐allometrically, that is, at an exponent > 0.33, with body mass across vertebrates, including amphibians. ABSTRACT Across four large vertebrate groups—fish, reptiles, birds and mammals— intestine length has been shown to scale hyper‐allometrically with body mass (BM), at an exponent higher than the geometric ...
M. J. Duque‐Correa   +7 more
wiley   +1 more source

Locus‐Specific Convergent Evolution and Interchromosomal Rearrangements Contribute to the Diversification of Amniote Type I Interferons

open access: yesEvolutionary Applications, Volume 19, Issue 5, May 2026.
ABSTRACT Type I interferons (IFNs) play essential roles in antiviral immune responses. The extensive diversification of type I IFNs into various subtypes and duplicated gene copies has posed significant challenges for evolutionary reconstruction. To address this, we developed the type I IFN sequence composition and structure (IFN‐SCOPE) model and gene ...
Le Zhang   +10 more
wiley   +1 more source

Early synapsids neurosensory diversity revealed by CT and synchrotron scanning

open access: yesThe Anatomical Record, Volume 309, Issue 4, Page 912-929, April 2026.
Abstract Non‐mammaliaform synapsids (NMS) represent the closest relatives of today's mammals among the early amniotes. Exploring their brain and nervous system is key to understanding how mammals evolved. Here, using CT and Synchrotron scanning, we document for the first time three extreme cases of neurosensory and behavioral adaptations that probe ...
J. Benoit   +6 more
wiley   +1 more source

Mitochondrial Phylogenomics and Genome Evolution in Anura: Insights From Structure and Gene Order Rearrangements

open access: yesEcology and Evolution, Volume 16, Issue 4, April 2026.
By analyzing 277 anuran mitochondrial genomes, this study reconstructs a robust phylogeny for frogs and toads, tracing their origins to the Triassic and major radiations to the Cretaceous‐Neogene. The research identifies 58 distinct gene arrangement patterns, providing a novel evolutionary framework.
Jiaoying He   +8 more
wiley   +1 more source

An overview of the postcranial osteology of caecilians (Gymnophiona, Lissamphibia)

open access: yesThe Anatomical Record, Volume 309, Issue 3, Page 674-699, March 2026.
Abstract Caecilians comprise a relatively small (~220 species) group (Gymnophiona) of snake‐like or worm‐like, mostly tropical amphibians. Most adult caecilians are fossorial, although some species may live in aquatic or semi‐aquatic environments, either as larvae or adults.
Rodolfo Otávio Santos   +2 more
wiley   +1 more source

Anfíbios do Município de João Pinheiro, uma Área de Cerrado no Noroeste de Minas Gerais, Brasil [PDF]

open access: yes, 2021
Here is presented the first records to the amphibian’s fauna from the Municipality of João Pinheiro, an area of “Cerrado” savanna in northwestern Minas Gerais, Brazil.
Silveira, Adriano Lima
core  

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