Results 221 to 230 of about 170,127 (368)

Growing sabers: Mandibular shape and biomechanical performance trajectories during the ontogeny of Smilodon fatalis

open access: yesThe Anatomical Record, EarlyView.
Abstract The evolution of organisms can be studied through the lens of developmental systems, as the timing of development of morphological features is an important aspect to consider when studying a phenotype. Such data can be challenging to obtain in fossil amniotes owing to the scarcity of their fossil record. However, the numerous remains of Rancho
Narimane Chatar   +5 more
wiley   +1 more source

Endosymbiotic ratchet accelerates divergence after organelle origin

open access: yesBioEssays, Volume 45, Issue 1, January 2023., 2023
Primary endosymbiosis gave rise to mitochondria and plastids. The proximate impacts of organelle origin on lineage evolution have not been addressed at the population level. Using data from the photosynthetic amoeba Paulinella, we hypothesize that primary endosymbiosis accelerates lineage divergence, a process we refer to as the endosymbiotic ratchet ...
Debashish Bhattacharya   +3 more
wiley   +1 more source

Taxon-specific ζ-Crystallin in Japanese Tree Frog (Hyla japonica) Lens [PDF]

open access: hybrid, 2001
Yutaka Fujii   +6 more
openalex   +1 more source

Hypercanines: Not just for sabertooths

open access: yesThe Anatomical Record, EarlyView.
Abstract Hypercanines are here defined as hypertrophied caniniform teeth, that is, canine teeth that are elongated to serve specific functions in different clades of mammals and their synapsid ancestors. This article presents an overview of the occurrence of hypercanines, their growth, and their function across a broad range of clades.
Lars Werdelin
wiley   +1 more source

Changes in the cervicovaginal microbiota composition of HPV16‐infected patients after clinical treatment

open access: yesCancer Medicine, Volume 11, Issue 24, Page 5037-5049, December 2022., 2022
This study interpreted the differential profiles of cervicovaginal microbiota and CSTs between HC women and HPV16‐infected women with CIN I, CIN II/III or SCC. The relationship between HPV16 clearance and cervicovaginal microbiota composition in each disease stage before and after clinical treatments was also established.
Chao Li   +3 more
wiley   +1 more source

New synonyms of Tipula (Vestiplex) balioptera Loew, 1863 (Diptera, Tipulidae). [PDF]

open access: yesBiodivers Data J
Starkevich P   +3 more
europepmc   +1 more source

Myological and osteological approaches to gape and bite force reconstruction in Smilodon fatalis

open access: yesThe Anatomical Record, EarlyView.
Abstract Masticatory gape and bite force are important behavioral and ecological variables. While much has been written about the highly derived masticatory anatomy of Smilodon fatalis, there remains a great deal of debate about their masticatory behaviors.
Ashley R. Deutsch   +5 more
wiley   +1 more source

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