Craig is a Professor in Zoology, Deputy Head of the School of Biological Sciences at The University of Queensland.  Craig is Director of Research for the Steve Irwin Wildlife Reserve, President of The Society for Experimental Biology, U.K. and an editor for The Journal of Experimental Biology.  

His research program focuses on how fish, frogs and reptiles can survive and function in extreme and changing environmental conditions.   Internationally he is regarded as one of the leading proponents of the emerging field of conservation physiology and has a number of research projects assessing and predicting the impact of human induced environmental change on animals. His research combines lab-based experimental studies with field-based studies and he takes an integrative approach that utilises ecological, behavioural, physiological and genomic approaches.