Results 61 to 70 of about 1,771 (171)

Phylogenetic Reconstruction of Lung Evolution in Extant Squamata

Journal of Zoology, Volume 330, Issue 2, Page 149-159, October 2026.
The Squamata group exhibits remarkable diversity in lung structure. However, a comprehensive understanding of how this variation evolved within the clade is still lacking. To reconstruct the evolutionary history of lungs of living squamates, we conducted comparative phylogenetic analyses using categorized lung traits, such as lung type, respiratory ...
Barbara de Godoi Champini, Ray Brasil Bueno de Souza, Wilfried Klein   +2 more
wiley   +1 more source

The evolution of cognitive abilities in marine animals: a hypothesis based on insights about cognition gene polymorphisms in Coelocanths and lungfish

Academia Molecular Biology and Genomics
Both coelacanths and lungfish have fossil evidence dating back 400 million years, placing them at a critical evolutionary juncture when marine animals transitioned to terrestrial environments. An intriguing question lies in the extent to which
Zhizhou Zhang, Shuaiyu Zhang, Yongdong Xu   +2 more
doaj   +1 more source

Turning Red to Green Repeatedly: Ancestral LWS Duplications Drive Convergent Visual Tuning in Teleost Fishes

Molecular Ecology, Volume 35, Issue 20, October 2026.
ABSTRACT Photopigments, formed by an opsin protein bound to a light‐sensitive chromophore, underlie vertebrate vision. Long‐wavelength–sensitive (LWS) opsins mediate red‐light detection, and most teleosts retain a single functional LWS1. A shorter‐shifted green‐sensitive paralog (LWS2) is found only in a few lineages.
Fabio Cortesi, Daniel Escobar‐Camacho, Gina Maria Sommer, Martin Luehrmann, Flurin Hidber, Xavier Deupi, Karen Carleton, Zuzana Musilova   +7 more
wiley   +1 more source

Eimeria lepidosirenis n.sp. (Apicomplexa:Eimeriidae) of the South American lungfish Lepidosiren paradoxa (Osteichthyes:Dipnoi) from Amazonian Brazil

Memorias do Instituto Oswaldo Cruz, 2006
The mature oocysts of Eimeria lepidosirenis n.sp. are described in faeces removed from the lower region of the intestine of a single specimen of the South American lungfish Lepidosiren paradoxa, from Belém, state of Pará, Amazonian Brazil.
R Lainson, Lucia Ribeiro
doaj   +1 more source

Discovery of J chain in African lungfish (Protopterus dolloi, Sarcopterygii) using high throughput transcriptome sequencing: implications in mucosal immunity. [PDF]

PLoS ONE, 2013
J chain is a small polypeptide responsible for immunoglobulin (Ig) polymerization and transport of Igs across mucosal surfaces in higher vertebrates. We identified a J chain in dipnoid fish, the African lungfish (Protopterus dolloi) by high throughput ...
Luca Tacchi, Erin Larragoite, Irene Salinas   +2 more
doaj   +1 more source

Fish Scales: A Multifunctional Biomaterial from Nature

ENERGY &ENVIRONMENTAL MATERIALS, Volume 9, Issue 5, September 2026.
Fish scales demonstrate nature's solution to impact protection through overlapping multilayered architecture. This biological design combines mineralized surfaces with collagen networks to achieve both flexibility and fracture resistance. The structural principles inspire advanced protective materials and biomedical implants, where damage tolerance ...
Liyao Dong, Xiaojie Sun, Xiguang Chen
wiley   +1 more source

Comparative Morphology and Mechanics of Aquatic and Terrestrial Feeding Salamanders

Journal of Morphology, Volume 287, Issue 9, September 2026.
Jaw muscle size, bite force, and skull strength are driven by multiple factors, not just the difference between the two habitats. Necturus produces higher bite forces than Salamandra, but the stress distribution is less even in Necturus, suggesting Salamandra's skull shape is better adapated to resist feeding loads.
Julia R. S. May, Laura B. Porro, Emily J. Rayfield   +2 more
wiley   +1 more source

Decreased cold‐sensing function of the transient receptor potential channel TRPM8 from tailed amphibians

FEBS Open Bio, Volume 16, Issue 8, Page 1477-1490, August 2026.
Despite frogs avoiding low temperatures, examination of four salamander species revealed that none avoided cold and all possessed cold tolerance. Functional analysis of TRPM8, a cold sensor, showed that all salamander TRPM8s had lost their cold sensitivity.
Tadahiro Sawao, Daiki Kobayashi, Shogo Hori, Osamu Saitoh   +3 more
wiley   +1 more source

Origin of secretin receptor precedes the advent of tetrapoda: evidence on the separated origins of secretin and orexin. [PDF]

PLoS ONE, 2011
At present, secretin and its receptor have only been identified in mammals, and the origin of this ligand-receptor pair in early vertebrates is unclear.
Janice K V Tam, Kwan-Wa Lau, Leo T O Lee, Jessica Y S Chu, Kwong-Man Ng, Alain Fournier, Hubert Vaudry, Billy K C Chow   +7 more
doaj   +1 more source

Two Routes to Land: Genomic Underpinnings of Parallel Aerial Egg Deposition in Aquatic Old‐World Pila and New‐World Pomacea (Ampullariidae)

Advanced Science, Volume 13, Issue 48, 28 August 2026.
Comparative genomics of Gondwana‐diverged Pila and Pomacea reveals parallel evolution of aerial oviposition. Convergent chromosomal rearrangements reshape regulatory landscapes within topologically associating domains. Lineage‐specific gene family expansions and viral‐derived perivitelline proteins (PV1) underpin desiccation resistance.
Yufei Zhou, Huawei Mu, Xueying Nie, Yue Gao, Hui Wang, Ling Fang, Tiangang Luan, Monthon Ganmanee, Jian‐Wen Qiu, Jin Sun, Jack Chi‐Ho Ip   +10 more
wiley   +1 more source