Results 41 to 50 of about 25,718 (208)

Tracing the evolutionary history of the morpho‐anatomy of baculum in primates

open access: yesThe Anatomical Record, EarlyView.
Abstract Animal morphology reflects both evolutionary history and present‐day adaptation. Male mammal copulatory structures such as the baculum (penile bone) are ideal for studying these processes because of their complexity and high interspecific variability. In primates, however, research has focused mostly on baculum length.
Federica Spani   +3 more
wiley   +1 more source

Fluorescence in situ hybridization to chromosomes as a tool to understand human and primate genome evolution [PDF]

open access: yes, 2005
For the last 15 years molecular cytogenetic techniques have been extensively used to study primate evolution. Molecular probes were helpful to distinguish mammalian chromosomes and chromosome segments on the basis of their DNA content rather than solely ...
Wienberg, Johannes, Wienberg, J.
core   +1 more source

Evolutionary morphology of the haplorhine hamate

open access: yesThe Anatomical Record, EarlyView.
Abstract Primates adopt a variety of hand postures during an impressive diversity of locomotor and manipulative behaviors. Morphological research has found that elements of the hand skeleton, such as the hamate, hold key information for inferring hand use and locomotor kinematics in extinct species.
Laura E. Hunter   +4 more
wiley   +1 more source

The Keystone‐Pathogen Hypothesis Updated: The Role of Porphyromonas gingivalis in Periodontitis

open access: yesJournal of Periodontal Research, EarlyView.
Porphyromonas gingivalis orchestrates a coordinated manipulation of immune and inflammatory responses in periodontal tissues which leads to the generation of a dysbiotic, subgingival biofilm community, and progression of periodontitis. The type 9 secretion system, lipid A modification, and the formation of outer membrane vesicles are important ...
Mike A. Curtis   +2 more
wiley   +1 more source

Life‐History Correlates of Enamel Microstructure in Cebidae (Platyrrhini, Primates) [PDF]

open access: yesThe Anatomical Record, 2011
AbstractPrevious studies have examined tooth eruption as it relates intrinsically to body mass, brain mass, and other life history variables, and extrinsically to ecological factors (e.g., age at foraging independence, environmental risk aversion, and maternal investment).
Russell T, Hogg, Robert S, Walker
openaire   +2 more sources

Estimating the phylogeny and divergence times of primates using a supermatrix approach

open access: yesBMC Evolutionary Biology, 2009
Background The primates are among the most broadly studied mammalian orders, with the published literature containing extensive analyses of their behavior, physiology, genetics and ecology.
Ho Simon YW   +3 more
doaj   +1 more source

Exploring the diversity of AVPR2 in Primates and its evolutionary implications

open access: yesGenetics and Molecular Biology, 2023
The current study focuses on the investigation of AVPR2 (VTR2C) protein-coupled receptor variants specific to different primate taxa. AVPR2 is activated by the neurohormone AVP, which modulates physiological processes, including water homeostasis.
Bibiana Sampaio de Oliveira Fam   +8 more
doaj   +1 more source

Caracterización molecular y análisis evolutivo del complejo mayor de histocompatibilidad clase I (MHC-I) en primates del nuevo mundo (Platyrrhini) [PDF]

open access: yes, 2014
El complejo mayor de histocompatibilidad clase I (MHC-I) codifica para proteínas de membrana que presentan péptidos antigénicos a los linfocitos T citotóxicos que inician la respuesta inmune celular [1].
Lugo Ramos, Juan Sebastian
core  

Primer registro de un Platyrrhini (Alouattini) fósil del Cuaternario de Costa Rica

open access: yes, 2016
This work describes some fossil remains, recovered from the Nacaome local fauna by theArchaeology Department of the Costa Rican National Museum during the campaign of 1993.
Valerio Zamora, Ana Lucía   +1 more
core   +1 more source

Monkey Meltdowns: Do Tantrums Influence Maternal Investment in Bearded Capuchin Monkeys?

open access: yesDevelopmental Psychobiology, Volume 68, Issue 3, May 2026.
ABSTRACT Tantrums are widely discussed in human development literature and are typically defined as displays of frustration or anger. In behavioral ecology, they are hypothesized to function as a strategy for securing greater maternal investment. Infant primates often exhibit tantrums when their attempts to obtain maternal care are rejected.
Mábia B. Cera   +5 more
wiley   +1 more source

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