| The genesis of animal play: Testing the limits GM Burghardt MIT press, 2005 | 1768 | 2005 |
| The cognitive animal: Empirical and theoretical perspectives on animal cognition M Bekoff, C Allen, GM Burghardt MIT press, 2002 | 492 | 2002 |
| Chemical perception in reptiles GM Burghardt Advances in chemoreception 1, 241-308, 1970 | 480 | 1970 |
| Defining and recognizing play GM Burghardt | 434 | 2010 |
| Animal awareness: Current perceptions and historical perspective. GM Burghardt American psychologist 40 (8), 905, 1985 | 393 | 1985 |
| Current perspectives on the biological study of play: signs of progress KL Graham, GM Burghardt The Quarterly Review of Biology 85 (4), 393-418, 2010 | 285 | 2010 |
| Cognitive ethology and critical anthropomorphism: A snake with two heads and hognose snakes that play dead GM Burghardt Cognitive Ethology, 53-90, 2014 | 263 | 2014 |
| Environmental enrichment and cognitive complexity in reptiles and amphibians: Concepts, review, and implications for captive populations GM Burghardt Applied Animal Behaviour Science 147 (3-4), 286-298, 2013 | 248 | 2013 |
| Learning processes in reptiles GM Burghardt Herpetologica 2, 175-196, 1977 | 245 | 1977 |
| A comparative analysis of scoring methods for chemical discrimination of prey by squamate reptiles WE Cooper, GM Burghardt Journal of Chemical Ecology 16, 45-65, 1990 | 242 | 1990 |
| Amending Tinbergen: A fifth aim for ethology. GM Burghardt State University of New York Press, 1997 | 205 | 1997 |
| Rough‐and‐tumble play as a window on animal communication E Palagi, GM Burghardt, B Smuts, G Cordoni, S Dall'Olio, HN Fouts, ... Biological Reviews 91 (2), 311-327, 2016 | 203 | 2016 |
| On the origins of play GM Burghardt Play in animals and humans, 5-41, 1984 | 200 | 1984 |
| Behavior and phylogeny: constriction in ancient and modern snakes HW Greene, GM Burghardt Science 200 (4337), 74-77, 1978 | 197 | 1978 |
| Synthetic ethology and the evolution of cooperative communication BJ MacLennan, GM Burghardt Adaptive behavior 2 (2), 161-188, 1993 | 191 | 1993 |
| Chemical-cue preferences of inexperienced snakes: comparative aspects GM Burghardt Science 157 (3789), 718-721, 1967 | 190 | 1967 |
| Instinct and innate behavior: Toward an ethological psychology. GM Burghardt Scott, Foresman, 1973 | 177 | 1973 |
| Breaking the social–non‐social dichotomy: a role for reptiles in vertebrate social behavior research? JS Doody, GM Burghardt, V Dinets Ethology 119 (2), 95-103, 2013 | 173 | 2013 |
| Food imprinting in the snapping turtle, Chelydra serpentina GM Burghardt, EH Hess Science 151 (3706), 108-109, 1966 | 171 | 1966 |
| Comparative prey-attack studies in newborn snakes of the genus Thamnophis GM Burghardt Behaviour, 77-114, 1969 | 170 | 1969 |
