Here is a terrific learning game that has pupils acting like lizards! Before the game starts, there is a class discussion on the differences between endotherms and exotherms. The main focus of the game is how each team must keep their lizard (a thermometer) alive by feeding it and regulating its body temperature. One team is the endotherms, while the other is the exotherms. A very clever and educationally sound learning game!