Results 71 to 80 of about 11,621 (198)

Frequency of Toxoplasma gondii antibodies in tufted capuchin monkeys (Cebus apella nigritus) from an ecological station in the State of São Paulo, Brazil

open access: yesPesquisa Veterinária Brasileira, 2013
Toxoplasmosis is a worldwide zoonosis caused by Toxoplasma gondii, an obligate intracellular parasite protozoan. A large percentage of animals presents specific antibodies caused by a previous exposition, resulting in a chronic infection. Felides are the
Rodrigo Costa da Silva   +4 more
doaj   +1 more source

How Capuchin Monkeys Use Their Semi-Prehensile Tails

open access: yesCurrent Science, 2022
Among primates, prehensile/semi-prehensile tails have evolved independently in the families Atelidae and Cebidae of the infraorder Platyrrhini (Neotropical monkeys). They facilitate maintaining stability during locomotion on thin, flexible branches and while reaching for food on challenging substrates.
Mangalam Madhur   +4 more
openaire   +3 more sources

Pigeons, portals, and Pacman: Insightful problem solving and navigation using a touchscreen video game

open access: yesJournal of the Experimental Analysis of Behavior, Volume 125, Issue 2, March 2026.
Abstract Video games have been used in several studies to investigate problem solving. We present empirical findings from a redesigned touchscreen navigation “grid‐world” procedure resembling the classic video game PacMan (hereafter, “pacman”) played by pigeons. Our objective was to develop a procedure to study insight, similar to that of Epstein et al.
Rafael S. Rodrigues   +3 more
wiley   +1 more source

Give What You Get: Capuchin Monkeys (Cebus apella) and 4-Year-Old Children Pay Forward Positive and Negative Outcomes to Conspecifics [PDF]

open access: yes, 2014
The breadth of human generosity is unparalleled in the natural world, and much research has explored the mechanisms underlying and motivating human prosocial behavior.
Gray, Kurt   +6 more
core   +9 more sources

Individual differences in zoo-housed squirrel monkeys’ (Saimiri sciureus) reactions to visitors, research participation, and personality ratings [PDF]

open access: yes, 2017
Understanding individual differences in captive squirrel monkeys is a topic of importance both for improving welfare by catering to individual needs, and for better understanding the results and implications of behavioral research.
Anderson   +38 more
core   +3 more sources

A Naturalistic Theory of (In)justice: How Neurophysiology and Metabolic Energy Ground the Perception of Injustice

open access: yesJournal for the Theory of Social Behaviour, Volume 56, Issue 1, March 2026.
ABSTRACT Across different domains, justice is considered either from a perspective concerning mind‐independent features of a situation or from a perspective related to mind‐dependent motives, traits or emotions. Although these approaches have generated valuable insights, they remain largely disconnected from each other.
Shervin MirzaeiGhazi   +1 more
wiley   +1 more source

Forest structure and connectivity drive the functional recovery of seed rain

open access: yesJournal of Ecology, Volume 114, Issue 2, February 2026.
Local forest structure and landscape‐scale connectivity shape distinct but complementary pathways of the functional recovery of seed rain in tropical forests. Structural complexity promotes functionally diverse plant–frugivore interactions locally, while connectivity facilitates the arrival of late‐successional seeds from external sources.
Anna R. Landim   +11 more
wiley   +1 more source

The Evolution of Primate Societies - Chapter 3 [PDF]

open access: yes, 2012
Compared with other primates, New World monkeys display relatively limited ecological variability. New World monkey anatomy and social systems, however, are extremely diverse.
Di Fiore, Anthony   +2 more
core  

The direct perception hypothesis: perceiving the intention of another’s action hinders its precise imitation [PDF]

open access: yes, 2014
We argue that imitation is a learning response to unintelligible actions, especially to social conventions. Various strands of evidence are converging on this conclusion, but further progress has been hampered by an outdated theory of perceptual ...
Froese, Tom, Leavens, David A
core   +2 more sources

A novel nonsense mutation in the tyrosinase gene is related to the albinism in a capuchin monkey (Sapajus apella)

open access: yesBMC Genetics, 2017
Background Oculocutaneous Albinism (OCA) is an autosomal recessive inherited condition that affects the pigmentation of eyes, hair and skin. The OCA phenotype may be caused by mutations in the tyrosinase gene (TYR), which expresses the tyrosinase enzyme ...
Felipe Tadeu Galante Rocha de Vasconcelos   +10 more
doaj   +1 more source

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