A Fruit in Hand is Worth Many More in the Bush: Steep Spatial Discounting by Free-Ranging Rhesus Macaques (Macaca mulatta)
Publication/Journal: Behavioural Processes
Keywords: choice, decision-making, reward, rhesus monkeys, spatial discounting
2012
The Learning of Exclusive-or Categories by Monkeys (Macaca mulatta) and Humans (Homo sapiens)
Publication/Journal: Journal of Experimental Psychology: Animal Behavior Processes
Keywords: categorization, comparative psychology, exclusive-or relation, learning, primates
2011
Stages of Category Learning in Monkeys (Macaca mulatta) and Humans (Homo sapiens)
Publication/Journal: Journal of Experimental Psychology: Animal Behavior Processes
Keywords: abstraction, category learning, primate cognition, prototypes, stages of learning
2010
Inhibitory Control and Response Selection in Problem Solving: How Cotton-Top Tamarins (Saguinus oedipus) Overcome a Bias for Selecting the Larger Quantity of Food
Publication/Journal: Journal of Comparative Psychology
Keywords: *choice behavior, animal behavior, animal behaviour, animals, choice behaviour, feeding behavior, feeding behaviour, female, inhibition (psychology), male, problem solving, saguinus
2005
Comparison of two introduction methods for african elephants (Loxodonta africana)
Publication/Journal: Zoo Biology
Keywords: aggression, behavioral management, group formation, socialization
2004
What Guides a Search for Food That Has Disappeared? Experiments on Cotton-Top Tamarins (Saguinus oedipus)
Publication/Journal: Journal of Comparative Psychology
Keywords: behavior, cognition, cotton-top tamarins, foraging, saguinus oedipus, searching
2001
Increased Circulating Levels of Testosterone and Corticosterone in Southern Toads, Bufo terrestris, Exposed to Coal Combustion Waste
Publication/Journal: General and Comparative Endocrinology
Keywords: bufo terrestris, coal, corticosterone, pollution, stress, testosterone, toads
1997
A comparative analysis of scent-marking, social and reproductive behavior in 20 species of small cats (Felis)
Publication/Journal: American Zoologist
Keywords: comparative analysis, felidae, felis, reproductive behavior, reproductive behaviour, scent marking, small cat, social
1993
Comparing Two Manipulable Objects as Enrichment for Captive Chimpanzees.
Publication/Journal: Animal Welfare
Keywords: animal welfare, behavioral management, behavioural management, environmental enrichment, great apes, psychological well-being
1992
Seasonal cycles in testicular activity, gonadotropin, and thyroxine in the painted turtle, Chrysemys picta, under natural conditions
Publication/Journal: General and Comparative Endocrinology
Keywords: chrysemys picta, follicle-stimulating hormone, painted turtle, stress, testosterone, thyroxine
1985