Directions: In this module, you learned about body size and temperature regulation strategies. Scientists have argued for many years about whether dinosaurs were warm- or cold-blooded, with most recent findings supporting warm-blooded. Compare what you know about the Earth's temperatures now versus then (65 million years ago) and to the animals now versus then. What kind of challenges do you think a warm- or cold-blooded dinosaur might face? Write a two to four page paper regarding this issue.