Results 1 to 10 of about 9,967 (162)

A Mechanical Approach for Comparing Jaws in Fishes

open access: yesBiomimetics
This paper aims to propose an quantitative engineering approach to study and compare the jaw mechanisms of different marine species, considering essential mechanical parameters generally used to evaluate the performance of industrial linkage mechanisms ...
Federica Trotta   +2 more
doaj   +3 more sources

A jaw-dropping fossil fish

open access: yesNature, 2013
Matt Friedman   +2 more
exaly   +3 more sources

Gastrointestinal morphology and feeding intensity of Periophthalmus gracilis caught from some coastal provinces in the Mekong Delta, Vietnam

open access: yesVeterinary Integrative Sciences, 2023
This study provided data on gastrointestinal morphology and feeding intensity of slender mudskipper Periophthalmus gracilis distributed in some coastal provinces in the Mekong Delta, Vietnam (VMD).
U Van Hua   +2 more
doaj   +1 more source

SATB2 and MDM2 Immunoexpression and Diagnostic Role in Primary Osteosarcomas of the Jaw

open access: yesDentistry Journal, 2021
Primary osteosarcomas of the jaw (OSJ) are rare, accounting for 6% of all osteosarcomas. This study aims to determine the value of SATB2 and MDM2 immunohistochemistry (IHC) in differentiating OSJ from other jawbone mimickers, such as benign fibro-osseous
Adepitan A. Owosho   +10 more
doaj   +1 more source

A novel cis-regulatory element drives early expression of Nkx3.2 in the gnathostome primary jaw joint

open access: yeseLife, 2022
The acquisition of movable jaws was a major event during vertebrate evolution. The role of NK3 homeobox 2 (Nkx3.2) transcription factor in patterning the primary jaw joint of gnathostomes (jawed vertebrates) is well known, however knowledge about its ...
Jake Leyhr   +5 more
doaj   +1 more source

PHARYNGEAL JAW STRUCTURE IN LABRID FISH [PDF]

open access: yesPublications of the Seto Marine Biological Laboratory, 1978
exaly   +2 more sources

Trophic divergence of Lake Kivu cichlid fishes along a pelagic versus littoral habitat axis

open access: yesEcology and Evolution, 2021
Local adaptation to the littoral and pelagic zones in two cichlid haplochromine fish species from Lake Kivu was investigated using morphometrics. Cranial variation and inferred jaw mechanics in both sexes of the two species across the two habitat types ...
Philippe S. Munyandamutsa   +3 more
doaj   +1 more source

Gill developmental program in the teleost mandibular arch

open access: yeseLife, 2022
Whereas no known living vertebrate possesses gills derived from the jaw-forming mandibular arch, it has been proposed that the jaw arose through modifications of an ancestral mandibular gill. Here, we show that the zebrafish pseudobranch, which regulates
Mathi Thiruppathy   +3 more
doaj   +1 more source

Phylogeny and Jaw Ontogeny of Beloniform Fishes [PDF]

open access: yesIntegrative and Comparative Biology, 2004
To investigate jaw evolution in beloniform fishes, we reconstructed the phylogeny of 54 species using fragments of two nuclear (RAG2 and Tmo-4C4) and two mitochondrial (cytochrome b and 16S rRNA) genes. Our total molecular evidence topology refutes the monophyly of needlefishes (Belonidae) and halfbeaks (Hemiramphidae), but supports the monophyly of ...
Nathan R, Lovejoy   +2 more
openaire   +2 more sources

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