The new field of primate archaeology investigates the technological behavior and material
record of nonhuman primates, providing valuable comparative data on our understanding of …

Primates employ different tools and techniques to overcome the challenges of obtaining
underground food resources. Humans and chimpanzees are known to tackle this problem …

There are no comparative, empirical studies of the energetic costs of feeding in mammals.
As a result, we lack physiological data to better understand the selection pressures on the …

Examples of realized scientific careers can provide ideas and inspiration for others aiming to
pursue such careers. Here I recount in brief the story of my long career in primatology (1973 …

Tool use in humans can be optional, that is, the same person can use different tools or no
tool to achieve a given goal. Strategies to reach the same goal may differ across individuals …

Abstract Objectives Capuchin monkeys (Cebus spp. and Sapajus spp.) routinely extract food
resources that are embedded in protective matrices. Features such as relative brain size …

Natural selection for positional behavior (posture and locomotion) has at least partially
driven the evolution of anatomical form and function in the order Primates. Examination of …

Extractive foraging tasks, such as digging, are broadly practiced among hunter-gatherer
populations in different ecological conditions. Despite tuber-gathering tasks being widely …

Early hominin species likely had access to open, grassy habitats where periodic reliance on
underground storage organs (USOs) is hypothesized to have played a crucial dietary role …

For most herbivorous animals, group‐living appears to incur a high cost by intensifying
feeding competition. These costs raise the question of how gregariousness (ie, the tendency …