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Vocal Complexity in Meerkats and Other Mongoose Species
The comparison of vocal complexity in the different mongoose species emphasizes the importance of identifying correlations of communicative variation with specific social contexts and taking the ecology of a species into account.
Differences in alarm vocalizations of sympatric populations of the whistling rats, Parotomys brantsii and P. littledalei (Rodentia: Muridae)
The data support the acoustic adaptation hypothesis in that P. littledalei, which inhabits a more closed habitat, has calls which are lower in frequency than P. brantsii calls, but contrary to the hypothesis, P.brantii calls do not show greater frequency modulation.
The effects of population density and sociality on scent marking in the yellow mongoose
We investigated scent marking behaviour in the yellow mongoose Cynictis penicillata, focusing on a low-density population where all offspring dispersed upon reaching sexual maturity. Dominant males
The vocal repertoire in a solitary foraging carnivore, Cynictis penicillata, may reflect facultative sociality
This study of the vocal repertoire of the yellow mongoose is, to the authors' knowledge, the most complete to have been conducted on a facultatively social species in its natural habitat.
Vigilance behaviour and fitness consequences: comparing a solitary foraging and an obligate group-foraging mammal
It is suggested that foraging group size in herpestids is constrained by species-distinct vigilance patterns, in addition to habitat and prey preference.
Indirect rival assessment in a social primate, Theropithecus gelada
Identifying the cognitive challenges of sociality can be difficult because similar social interactions may be based on very different cognitive mechanisms. To better understand the cognitive
From killer to carer: steroid hormones and paternal behaviour
This review examines the current — highly constrained — state of knowledge about the endocrine basis of carnivore paternal investment and attempts to link changes in androgen and glucocorticoid levels with variation in direct and indirect paternal care behaviour making specific predictions regarding the way forward.
Is computed tomography of the brain necessary in patients with clinically suspected depressed skull fracture and no focal neurological deficit
Objective. The objective of the study was to determine whether computed tomography (CT) of the brain is necessary in all head trauma patients with clinically suspected depressed skull fractures,
Human observers impact habituated samango monkeys’ perceived landscape of fear.
The results suggest that human observers lower monkeys’ perceived risk of terrestrial predators and, thereby, affect their foraging decisions at or near ground level, which has significant implications for future studies of responses to predation risk based on habituation and observational methods.