Results 71 to 80 of about 3,290 (191)
American Journal of Primatology, Volume 87, Issue 9, September 2025.Where cercopithecine monkeys are well fed, as in managed colonies, mothers cease lactation by about 7 months. This contrasts weaning age in a food limited population of wild toque macaques (TM) in Sri Lanka where all mothers lactate up to 7 months (0.58 y), during primary lactation, and continue to provide supplementary milk as infants transition to ...
Wolfgang P. J. Dittus +3 more
wiley +1 more source
Estudos sôbre a excitação química da córtex cerebral (Ação da acetilcolina)
Memorias do Instituto Oswaldo Cruz, 1945 The author has studied the influence of acetylcholine solutions directly applied on the motor cortex of dogs, cats monkeys and rabbits. For this purpose small squares of filter paper were soaked in the acetylcholine solution and soon afterwards laid on ...
H. Mcussatché
doaj +1 more source
Distribución, estructura y caracterización del hábitat de dos poblaciones simpátricas de alouatta (alouatta seniculus y alouatta palliata, primates) en el Chocó, Colombia [PDF]
, 2010 Ecólogo (a ...
Zúñiga Leal, Sara Alexandra
core
American Journal of Primatology, Volume 87, Issue 8, August 2025.ABSTRACT Infant survival is an important component of parental fitness in iteroparous species with slow life histories. From the infant's perspective, survival can be more or less directly influenced by the social environment, with group members potentially representing either a threat or a buffer against external stressors.
Amrei Pfaff +2 more
wiley +1 more source
Revista de Biología Tropical, 2009 The effect of human development on six diurnal mammal species was studied using transects in the Punta Leona Private Wildlife Refuge, Puntarenas, Costa Rica during the dry season months of March and April 2006.
Michael Van Hulle, Christopher Vaughan
doaj
What animals do not do or fail to find: A novel observational approach for studying cognition in the wild [PDF]
, 2019 To understand how our brain evolved and what it is for, we are in urgent need of knowledge about the cognitive skills of a large variety of animal species and individuals, and their relationships to rapidly disappearing social and ecological conditions ...
Janmaat, K.
core +1 more source
Vocal Repertoire of Cebus capucinus: Acoustic Structure, Context, and Usage
International Journal of Primatology, 2008 Researchers studying nonhuman primate vocal repertoires suggest that convergent environmental, social, and motivational factors account for intra- and interspecific vocal variation. We provide a detailed overview of the vocal repertoire of white-faced capuchins, including acoustic analyses and contextual information of vocal production and vocal usage ...
Gros-Louis, Julie J. +6 more
openaire +2 more sources
American Journal of Primatology, Volume 87, Issue 8, August 2025.This study investigated the feeding and swallowing physiology of 26 marmosets (1 month to 19 years old). Using a non‐invasive cineradiography setup, the study examined key age‐related differences in oral and pharyngeal swallowing phases across four age groups: infant, adult, old, and very old.
Max Sarmet +7 more
wiley +1 more source
Strategies, costs and counter‐strategies to sexual coercion
Biological Reviews, Volume 100, Issue 4, Page 1557-1577, August 2025.ABSTRACT Sexual conflict, the conflict between the evolutionary interests of females and males over mating, occasionally results in the evolution of traits favourable for one sex and adverse for the other. In this context, males can use sexual coercion to increase their mating success, at the expense of their female targets' mate choice.
Nikolaos Smit
wiley +1 more source
No short-term contingency between grooming and food tolerance in Barbary macaques (Macaca sylvanus) [PDF]
, 2015 The exchange services such as allo-grooming, allo-preening, food tolerance and agonistic support has been observed in a range of species. Two proximate mechanisms have been proposed to explain the exchanges of services in animals.
Altmann +75 more
core +2 more sources