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Data PointGrady and colleagues compared dinosaur fossil evidence with evidence from living animal species to shed more light on the type of thermoregulation that dinosaurs used—ectothermy, endothermy, or mesothermy.
ActivityThis activity serves as a supplement to the HHMI short film The Origin of Species: The Making of a Theory. Students read and analyze excerpts from texts written by Charles Darwin and Alfred Russel Wallace and answer questions about the information presented, developing their nonfiction reading comprehension.
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