Results 1 to 10 of about 1,837 (174)

Hard-Object Feeding in Sooty Mangabeys (Cercocebus atys) and Interpretation of Early Hominin Feeding Ecology [PDF]

PLoS ONE, 2011
Morphology of the dentofacial complex of early hominins has figured prominently in the inference of their dietary adaptations. Recent theoretical analysis of craniofacial morphology of Australopithecus africanus proposes that skull form in this taxon ...
David Daegling, Peter Ungar, James Pampush   +2 more
exaly   +7 more sources

Turn-taking in grooming interactions of sooty mangabeys (Cercocebus atys) in the wild [PDF]

Animal Cognition
Language is widely regarded as a uniquely human trait, rooted in mechanisms of social interaction such as conversational turn-taking. It has been proposed that turn-taking may not be exclusive to humans but may represent an ancestral trait shared across ...
Pharisemène Tibesar, Catherine Crockford, Auriane Le Floch, Simone Pika   +3 more
doaj   +6 more sources

Social uncertainty promotes signal complexity during approaches in wild chimpanzees (Pan troglodytes verus) and mangabeys (Cercocebus atys atys) [PDF]

Royal Society Open Science, 2023
The social complexity hypothesis for the evolution of communication posits that complex social environments require greater communication complexity for individuals to effectively manage their relationships.
Mathilde Grampp, Liran Samuni, Cédric Girard-Buttoz, Julián León, Klaus Zuberbühler, Patrick Tkaczynski, Roman M. Wittig, Catherine Crockford   +7 more
doaj   +9 more sources

Vocal sequence diversity and length remain stable across ontogeny in a catarrhine monkey (Cercocebus atys) [PDF]

Communications Biology
During childhood, human speech utterances increase steadily in complexity, length and diversity. In contrast, the vocal repertoire of non-human primates has long been considered fixed from birth.
Ryan Sigmundson, Cédric Girard-Buttoz, Auriane Le Floch, Tanit Souha Azaiez, Richard McElreath, Klaus Zuberbühler, Roman M. Wittig, Catherine Crockford   +7 more
doaj   +7 more sources

Coordination challenges shape signal complexity in chimpanzees ( Pan troglodytes verus ), but not in mangabeys ( Cercocebus atys atys ) [PDF]

Royal Society Open Science
Increased coordination challenges, such as in the negotiation of group movement and activity, has been suggested to promote communicative complexity. This hypothesis, however, has rarely been tested within and between species, specifically in relation to
Roman Wittig, Catherine Crockford, Liran Samuni   +2 more
exaly   +5 more sources

How mangabey molar form differs under routine vs. fallback hard-object feeding regimes [PDF]

PeerJ, 2023
Background Components of diet known as fallback foods are argued to be critical in shaping primate dental anatomy. Such foods of low(er) nutritional quality are often non-preferred, mechanically challenging resources that species resort to during ...
Debbie Guatelli-Steinberg, Cameron Renteria, Jack R. Grimm, Izabela Maeret Carpenter, Dwayne D. Arola, W. Scott McGraw   +5 more
doaj   +3 more sources

The Meaning of Mangabey Molars (And Premolars). [PDF]

Evol Anthropol
ABSTRACT The postcanine teeth of mangabeys (members of Cercocebus and Lophocebus) have figured prominently in discussions about the relationship between hard‐object feeding and dental form. Grey‐cheeked mangabeys (Lophocebus albigena) and sooty mangabeys (Cercocebus atys) both have thickly enameled posterior teeth.
Guatelli-Steinberg D, Scott McGraw W.
europepmc   +2 more sources

Simian immunodeficiency virus and storage buffer: Field-friendly preservation methods for RNA viral detection in primate feces [PDF]

mSphere, 2023
Wild non-human primates carry many types of RNA viruses, including simian immunodeficiency virus (SIV), simian foamy virus, simian T-cell leukemia virus, and hepatitis C virus.
Tessa H. C. Wilde, Rajni Kant Shukla, Christopher Madden, Yael Vodovotz, Amit Sharma, W. Scott McGraw, Vanessa L. Hale   +6 more
doaj   +2 more sources

Enamel Prism Angle Variation and Hard-Object Feeding in Cercopithecoids With Known Diets. [PDF]

Am J Biol Anthropol
Left: Cercocebus atys specimen 16–9 third molar showing Phase II enamel prism angle (angle between prism path and wear facet) and wear angle (angle between wear facet and enamel dentin junction (EDJ)). Scatterplot of prism vs. wear angles for the Phase II wear facet. Note the higher angles for Cercocebus.
Scheinblum J, McGraw WS, Gurian K, Guatelli-Steinberg D.   +3 more
europepmc   +2 more sources

Downclimbing and the evolution of ape forelimb morphologies [PDF]

Royal Society Open Science, 2023
The forelimbs of hominoid primates (apes) are decidedly more flexible than those of monkeys, especially at the shoulder, elbow and wrist joints. It is tempting to link the greater mobility of these joints to the functional demands of vertical climbing ...
Luke D. Fannin, Mary S. Joy, Nathaniel J. Dominy, W. Scott McGraw, Jeremy M. DeSilva   +4 more
doaj   +2 more sources