Problems with equating thermal preference with ‘emotional fever’ and sentience: comment on ‘Fish can show emotional fever: stress-induced hyperthermia in zebrafish’ by Rey et al. (2015). - Key, B.; Arlinghaus, R.; Browman, H. I.; Cooke, S. J.; Cowx, I. G.; Diggles, B. K.; Rose, J. D.; Sawynok, W.; Schwab, A.; Skiftesvik, A. B.; Stevens, E. D.; Watson, C. A. (Proceedings of the Royal Society B: Biological Sciences, 2017)