Vervet monkey alarm calling has long been the paradigmatic example of how primates use vocalizations in response to predators. In vervets, there is a close and direct relationship between the production of distinct alarm vocalizations and the presence of distinct predator types. Recent fieldwork has however revealed the use of several additional alarm calling systems in primates. Here, the auth...

Free-ranging vervet monkeys can solve a complex, multi-player coordination problem, learning to remain outside a 'forbidden circle' imposed by one member of the troop, in the absence of any social learning, communication, or policing by more dominant animals.

The reliable data on faunal diversity, abundance, and habitat preference are essential for proposing establishing relevant conservation interventions. A survey was done from September 2019 to March 2021 investigate the relative association of large medium mammals in Tiski Waterfall, Ethiopia. Data were collected using line transect method both types. In cliff sites, point also used. habitats po...

using norepinephrine and isoproterenol, INVEST. OPHTHALMOL. 12:267, 1973. 3. Wilke, K.: Early effects of epinephrine and pilocarpine on the intraocular pressure and the episcleral venous pressure in the normal human eye, Acta Ophthalmol. 52:231, 1974. 4. Goodman, L. S., and Gilman, A., editors: The Pharmacological Basis of Therapeutics, Ed. 5, New York, 1975, The Macmillan Co. 5. Barany, E. H.:...

The physical growth patterns of crested langurs and vervet monkeys are investigated for several unilinear dimensions. Long bone lengths, trunk height, foot length, epiphyseal fusion of the long bones and the pelvis, and cranial capacity are compared through six dental growth stages in male Trachypithecus cristatus (crested langurs) and Cercopithecus aethiops (vervet monkeys). Results show that ...

Previous studies on the contractile properties of human myofibrils reported increase, decrease, or no change with aging, perhaps due to the differences in physical activity, diet, and other factors. This study examined physical performance and contractile characteristics of myofibrils of vastus lateralis (VL) muscle in young adult and old African green vervet monkeys. Animals were offered the s...