Size: Sea turtles example of gigantotherms (active, long distance migration in cold environment) some older arguments that size necessitates ectothermy endothermic sauropods would overheat so gigantothermy likely however bull elephants suggest otherwise and other dino lines had possible thermo-regulation features Geography: dinosaur range surpasses modern terrestrial ectotherms migration evidence Predator - Prey Ratios: (should compare fossil communities) 100 zebra = 1 lioness and cubs Dinosaur predator/prey ratios suggest endothermy but is this accurate?
(some older arguments; size; necessitates) (Dinosaur predator/prey ratios; suggest; endothermy) (100 zebra = 1 lioness and cubs Dinosaur predator/prey ratios suggest endothermy; is; this accurate) (dinosaur range; surpasses; modern terrestrial ectotherms migration evidence)
some older arguments Dinosaur predator/prey ratios 100 zebra = 1 lioness and cubs Dinosaur predator/prey ratios suggest endothermy dinosaur range
size suggest is surpasses
necessitates
endothermy
this accurate
modern terrestrial ectotherms migration evidence