Talk about comparative fitness of poikilotherms vs homeotherms Solution - poikilotherm are animals which adjust to the surrounding tempertaures, wheras homeotherms are animals with constant body temperature -poikilotehrmic are ectothermic wheras homeotherm are endothermic -poikiltherms have enzymes within them which helpthem to regulate their body temperatures compared to homeotherms -poikilotherms show hibernation and aestivation generally whereas in homeotherms hibernation and aestivation occurs rarely -.