To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Movie 2 Critical thermal limits of bumblebees (Bombus impatiens) are marked by stereotypical behaviors and are unchanged by acclimation, age or feeding status K. Jeannet Oyen, and Michael E. Dillon Journal of Experimental Biology 2018. 221:None-None; doi: 10.1242/jeb.165589 Download Original Video