Results 51 to 60 of about 1,733 (196)

Morphological evolution and modularity of the caecilian skull

open access: yesBMC Evolutionary Biology, 2019
Background Caecilians (Gymnophiona) are the least speciose extant lissamphibian order, yet living forms capture approximately 250 million years of evolution since their earliest divergences.
Carla Bardua   +4 more
doaj   +1 more source

The amphibians of the state of Rio de Janeiro, Brazil: an updated and commented list

open access: yesPapéis Avulsos de Zoologia, 2018
. The amphibian fauna of the state of Rio de Janeiro, in southeatern Brazil, is characterized by high species richness and rates of endemism, and is still insufficiently known.
Thiago Arnt Dorigo   +2 more
doaj   +1 more source

The Dry‐Climate Hypothesis: Identifying the Environmental Drivers of Terrestrial Viviparous Salamanders

open access: yesJournal of Biogeography, Volume 52, Issue 11, November 2025.
ABSTRACT Aim The evolution of adaptive innovations carries strong eco‐evolutionary implications, allowing organisms to explore novel ecological opportunities, which facilitates lineage diversification. The remarkable diversity of reproductive strategies in amphibians provides a natural laboratory for identifying ecological mechanisms driving ...
Marco Dinis   +4 more
wiley   +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  

The evolution of muscle spindles

open access: yesExperimental Physiology, Volume 110, Issue 10, Page 1401-1421, October 1, 2025.
Abstract Muscle spindles are stretch‐sensitive mechanoreceptors found in the skeletal muscles of most four‐limbed vertebrates. They are unique amongst sensory receptors in the ability to regulate their sensitivity by contraction of the intrafusal muscle fibres on which the sensory endings lie.
Robert W. Banks, Uwe Proske
wiley   +1 more source

A review of color patterns in Caecilia tentaculata (Gymnophiona: Caeciliidae) reveals high frequency of partial leucism [PDF]

open access: yesActa Amazonica
Caecilia tentaculata is an amphibian species of the order Gymnophiona, widely distributed throughout Amazonia. We reviewed the species’ color pattern based on the analysis of collection specimens representing several populations across its geographic ...
Alice Maria Barbosa GUIMARÃES DIAS   +3 more
doaj   +1 more source

Amphibians and Reptiles of Ethiopia—Biogeography, Conservation Priority Areas, and Potentials for “One Plan Approach” Conservation Measures 埃塞俄比亚的两栖爬行动物——生物地理学、保育优先区及“一体化方案”保育措施的潜力

open access: yesIntegrative Conservation, Volume 4, Issue 3, Page 442-463, September 2025.
In this study, we analyze the conservation status of Ethiopia's amphibian and reptile diversity in terms of coverage with protected areas and global representation in conservation breeding facilities. We identify conservation gaps and suggest priorities for improvement.
Kolja Sperling   +3 more
wiley   +1 more source

A new species of Microcaecilia (Amphibia: Gymnophiona: Caeciliidae) from Guyana

open access: yes, 2010
Wilkinson, Mark, Kok, Philippe J. R. (2010): A new species of Microcaecilia (Amphibia: Gymnophiona: Caeciliidae) from Guyana.
Kok, Philippe J. R., Wilkinson, Mark
core   +1 more source

Chromosomal homology of Uraeotyphlus oxyurus group of species (Amphibia, Gymnophiona, Ichthyophiidae)

open access: yesComparative Cytogenetics, 2013
Uraeotyphlus oxyurus (Dumeril et Bibron, 1841), U. interruptus Pillai et Ravichandran, 1999, U. narayani Seshachar, 1939 and U. menoni Annandale, 1913 were cytogenetically analysed following conventional and differential staining techniques.
Venu Govindappa, G Venkatachalaiah
doaj   +1 more source

Cranial Morphology of the Carboniferous-Permian Tetrapod Brachydectes newberryi (Lepospondyli, Lysorophia): New Data from µCT. [PDF]

open access: yesPLoS ONE, 2016
Lysorophians are a group of early tetrapods with extremely elongate trunks, reduced limbs, and highly reduced skulls. Since the first discovery of this group, general similarities in outward appearance between lysorophians and some modern lissamphibian ...
Jason D Pardo, Jason S Anderson
doaj   +1 more source

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