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Submissions from 2007

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How Animals Communicate Quality of Life: The Qualitative Assessment of Behaviour, F. Wemelsfelder

Submissions from 2006

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Exploration and Habituation in Intact Free Moving Octopus vulgaris, Jennifer Mather

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Grey Parrot (Psittacus erithacus) Numerical Abilities: Addition and Further Experiments on a Zero-Like Concept, Irene M. Pepperberg

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Ordinality and Inferential Abilities of a Grey Parrot (Psittacus erithacus), Irene M. Pepperberg

Submissions from 2005

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Chimpanzee Theory of Mind: Looking in All the Wrong Places?, Kristin Andrews

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Effects of Predation Pressure on the Cognitive Ability of the Poeciliid Brachyraphis episcopi, Culum Brown and Victoria A. Braithwaite

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In Situ Examination of Boldness–Shyness Traits in the Tropical Poeciliid, Brachyraphis episcopi, Culum Brown, Felicity Jones, and Victoria Braithwaite

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Number Comprehension by a Grey Parrot (Psittacus erithacus), Including a Zero-Like Concept, Irene M. Pepperberg and Jesse D. Gordon

Submissions from 2004

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Reflections on Animal Selves, Marc Bekoff and Paul W. Sherman

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Size Matters: A Test of Boldness in Eight Populations of the Poeciliid Brachyraphis episcopi, Culum Brown and Victoria Braithwaite

Submissions from 2003

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Considering Animals—Not “Higher” Primates, Marc Bekoff

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Minding Animals, Minding Earth: Science, Nature, Kinship, and Heart, Marc Bekoff

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Habitat-Predator Association and Avoidance in Rainbowfish (Melanotaenia spp.), Culum Brown

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Nest Building in Captive Gorilla gorilla gorilla, Kristen E. Lukas, Tara S. Stoinski, Kyle Burks, Rebecca Snyder, Sarah Bexell, and Terry L. Maple

Submissions from 2002

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Do Female Rainbowfish (Melanotaenia spp.) Prefer to Shoal with Familiar Individuals under Predation Pressure?, Culum Brown

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Social Learning of a Novel Avoidance Task in the Guppy: Conformity and Social Release, Culum Brown and Kevin N. Laland

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Chimpanzees (Pan troglodytes) Recognize Spatial and Object Correspondences Between a Scale Model and its Referent, Valerie A. Kuhlmeier and Sarah T. Boysen

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Convergence of Complex Cognitive Abilities in Cetaceans and Primates, Lori Marino

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Cognitive and Communicative Abilities of Grey Parrots, Irene M. Pepperberg

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In Search of King Solomon’s Ring: Cognitive and Communicative Studies of Grey Parrots (Psittacus erithacus), Irene M. Pepperberg

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Vigilance and Predation Risk in Gunnison’s Prairie Dogs (Cynomys gunnisoni), J. L. Verdolin and C. N. Slobodchikoff

Submissions from 2001

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Size Matters: Impact of Item Size and Quantity on Array Choice by Chimpanzees (Pan troglodytes), Sarah T. Boysen, Gary G. Berntson, and Kimberly L. Mukobi

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Familiarity with the Test Environment Improves Escape Responses in the Crimson Spotted Rainbowfish, Melanotaenia duboulayi, Culum Brown

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Interactions Between Shoal Size and Conformity in Guppy Social Foraging, Rachel L. Day, Tom MacDonald, Culum Brown, Kevin N. Laland, and Simon M. Reader

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The Effect of Response Contingencies on Scale Model Task Performance by Chimpanzees (Pan troglodytes), Valerie A. Kuhlmeier and Sarah T. Boysen

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Animal Suffering: An Invertebrate Perspective, Jennifer A. Mather

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Mirror Self-Recognition in the Bottlenose Dolphin: A Case of Cognitive Convergence, Diana Reiss and Lori Marino

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Familiarity Facilitates Social Learning of Foraging Behaviour in the Guppy, Will Swaney, Jeremy Kendal, Hannah Capon, Culum Brown, and Kevin N. Laland

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Assessing the ‘Whole Animal’: A Free Choice Profiling Approach, Françoise Wemelsfelder, Tony E.A. Hunter, Michael T. Mendl, and Alistair B. Lawrence

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Qualitative Assessment of Animal Behaviour as an On-Farm Welfare-Monitoring Tool, Françoise Wemelsfelder and Alistair B. Lawrence

Submissions from 2000

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Animal Emotions: Exploring Passionate Natures, Marc Bekoff

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Primate Numerical Competence: Contributions Toward Understanding Nonhuman Cognition, Sarah T. Boysen and Karen I. Hallberg

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Primate Numerical Competence: Contributions Toward Understanding Nonhuman Cognition, Sarah T. Boysen and Karen I. Hallberg

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Spontaneous Discrimination of Natural Stimuli by Chimpanzees (Pan troglodytes), David A. Brown and Sarah T. Boysen

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Bubble Ring Play of Bottlenose Dolphins (Tursiops truncatus): Implications for Cognition, Brenda McCowan, Lori Marino, Erik Vance, Leah Walke, and Diana Reiss

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Possible Levels of Animal Consciousness with Reference to Grey Parrots (Psittacus erithacus), Irene M. Pepperberg and Spencer K. Lynn

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Agonistic Behaviour and Biogenic Amines in Shore Crabs Carcinus Maenas, Lynne U. Sneddon, Alan C. Taylor, Felicity A. Huntingford, and David G. Watson

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Diversity of Behaviour During Novel Object Tests is Reduced in Pigs Housed in Substrate-Impoverished Conditions, Françoise Wemelsfelder, Marie Haskell, Michael T. Mendl, Sheena Calvert, and Alistair B. Lawrence

Submissions from 1999

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Overcoming Response Bias Using Symbolic Representations of Number by Chimpanzees (Pan troglodytes), Sarah T. Boysen, Kimberly L. Mukobi, and Gary G. Berntson

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Scale-Model Comprehension by Chimpanzees (Pan troglodytes), Valerie A. Kuhlmeier, Sarah T. Boysen, and Kimberly L. Mukobi

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A Preliminary Investigation of the Construct of Psychopathic Personality (Psychopathy) in Chimpanzees (Pan troglodytes), Scott O. Lilienfeld, Jonathan Gershon, Marshall Duke, Lori Marino, and Frans B. M. de Waal

Submissions from 1997

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Experience in Substrate-Enriched and Substrate-Impoverished Environments Affects Behaviour of Pigs in a T-Maze Task, Michael Mendl, Hans W. Erhard, Marie Haskell, Françoise Wemelsfelder, and Alistair B. Lawrence

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Development of Piagetian Object Permanence in a Grey Parrot (Psittacus erithacus), Irene M. Pepperberg, Mark R. Willner, and Lauren B. Gravitz

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Language-Naive Chimpanzees (Pan troglodytes) Judge Relations Between Relations in a Conceptual Matching-to-Sample Task, Roger K.R. Thompson, David L. Oden, and Sarah T. Boysen

Submissions from 1996

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Quantity-Based Interference and Symbolic Representations in Chimpanzees (Pan troglodytes), S. T. Boysen, G. G. Berntson, M. B. Hannan, and J. T. Cacioppo

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The Effect of Substrate-Enriched and Substrate-Impoverished Housing Environments on the Diversity of Behaviour in Pigs, Marie Haskell, Françoise Wemelsfelder, Michael T. Mendl, Sheena Calvert, and Alistair B. Lawrence

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Mechanisms of American English Vowel Production in a Grey Parrot (Psittacus erithacus), Denice K. Warren, Dianne K. Patterson, and Irene M. Pepperberg

Submissions from 1995

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Responses to Quantity: Perceptual Versus Cognitive Mechanisms in Chimpanzees (Pan Troglodytes), Sarah T. Boysen and Gary G. Berntson

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Indicating Acts During Counting by a Chimpanzee (Pan troglodytes), Sarah T. Boysen, Gary G. Berntson, Traci A. Shreyer, and Michelle B. Hannan

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Comprehension of Cause-Effect Relations in a Tool-Using Task by Chimpanzees (Pan troglodytes), Luca Limongelli, Sarah T. Boysen, and Elisabetta Visalberghi

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Mirror Use by African Grey Parrots (Psittacus erithacus), Irene M. Pepperberg, Sean E. Garcia, Eric C. Jackson, and Sharon Marconi

Submissions from 1994

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Numerical Competence in an African Gray Parrot (Psittacus erithacus), Irene M. Pepperberg

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Vocal Learning in Grey Parrots (Psittacus erithacus): Effects of Social Interaction, Reference, and Context, Irene M. Pepperberg

Submissions from 1993

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Vocal Perception: Brain Event-Related Potentials in a Chimpanzee, Gary G. Berntson, Sarah T. Boysen, and Michael W. Torello

Submissions from 1992

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Vocal Recognition in Mexican Free-Tailed Bats: Do Pups Recognize Mothers?, Jonathan Balcombe and Gary F. McCracken

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Comprehension of Role Reversal in Chimpanzees: Evidence of Empathy?, Daniel J. Povinelli, Kurt E. Nelson, and Sarah T. Boysen

Submissions from 1991

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Kin Recognition in Vertebrates: What Do We Really Know About Adaptive Value?, Andrew R. Blaustein, Marc Bekoff, John A. Byers, and Thomas J. Daniels

Submissions from 1990

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Vocal Recognition of Pups by Mother Mexican Free-Tailed Bats, Tadarida brasiliensis mexicana, Jonathan P. Balcombe

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Inferences About Guessing and Knowing by Chimpanzees (Pan troglodytes), Daniel J. Povinelli, Kurt E. Nelson, and Sarah T. Boysen

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Understanding Dogs through Kinesthetic Empathy, Social Construction, and History, Kenneth J. Shapiro

Submissions from 1989

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Specificity of the Cardiac Response to Conspecific Vocalizations in Chimpanzees, Gary G. Berntson and Sarah T. Boysen

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Conspecific Recognition in the Chimpanzee (Pan troglodytes): Cardiac Responses to Significant Others, Sarah T. Boysen and Gary G. Berntson

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Numerical Competence in a Chimpanzee (Pan troglodytes), Sarah T. Boysen and Gary G. Berntson

Submissions from 1988

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Eavesdropping by Bats: The Influence of Echolocation Call Design and Foraging Strategy, Jonathan Balcombe and M. Brock Fenton

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Comprehension of "Absence" by an African Grey Parrot: Learning with Respect to Questions of Same/Different, Irene M. Pepperberg

Submissions from 1986

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Cardiac Correlates of Individual Recognition in the Chimpanzee (Pan troglodytes), Sarah T. Boysen and Gary G. Berntson

Submissions from 1985

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Visual Evoked Potentials in the Great Apes, Sarah T. Boysen and Gary G. Berntson

Submissions from 1984

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Animal Boredom: Is a Scientific Study of the Subjective Experiences of Animals Possible?, Francoise Wemelsfelder

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The Question of Animal Awareness, Francoise Wemelsfelder

Submissions from 1982

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The Problem of Pain: What Do Animals Really Feel?, Dana H. Murphy

Submissions from 1981

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Social and Cognitive Capabilities of Nonhuman Primates: Lessons from the Wild to Captivity, William C. McGrew

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Abnormal Behavior as an Indication of Immaterial Suffering, Hans Hinrich Sambraus

Submissions from 1980

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Stress: What Is It and How Can It Be Quantified?, T. H. Friend

Submissions from 1975

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The Communication of Play Intention: Are Play Signals Functional?, Marc Bekoff