Recently Dela (International Journal of Primatology, 28 (2007): 607–626; International Journal of Primatology, 33 (2012): 40–72) published her study from the mid-1980s on the diet of purple-faced langurs Trachypithecus (Semnopithecus) vetulus in village gardens and rubber plantations. Unlike studies from the 1970s that reported the species, like other colobines, to be largely folivorous with fe...

How can we reconcile the conception of language as a conventional-normative semiotic system with a perception/action-based account of its structure and meaning? And why should linguistic meaning--as opposed to linguistic expression--be so closely related to motor activity and its neural underpinnings, as suggested by recent findings? A conceptual framework and evolutionary scenario building on ...

Abstract Although artificial crossing structures are increasingly implemented by conservationists and wildlife managers to connect fragmented habitat, the study of structure design, particularly canopy bridges, is an emerging field in primatology. We address this issue evaluating five competing bridge models with varying width, material stiffness, substrate spacing. assessed preference performa...

The vascular anatomy of the human hand is known to be of outstanding importance in medical, surgical and radiological sciences (Coleman and Anson, 1961; Kenesi et al., 1967; Braun et al., 1977), as well as in comparative anatomy and primatology (Manners-Smith, 1910; Sakka, 1972). The constitution, relationship and common abnormalities of both arterial palmar arches make their dissection difficu...

Some studies, so far limited in number, suggest the existence of procedural metacognition in young children, that is, the practical capacity to monitor and control one's own cognitive activity in a given task. The link between procedural metacognition and false belief understanding is currently under theoretical discussion. If data with primates seem to indicate that procedural metacognition an...