Why were animals so much bigger in prehistoric times?

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Dinosaurs seemed to have generally been so much larger than animals today. Huge dragonflies that dwarf their modern counterparts, turtles 10ft long. What is the mechanism that allowed them to be so large, or conversely makes modern ones smaller? Is it about Oxygen levels, or efficiency, or something else?

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Anonymous 0 Comments

Well to put it simply… We just don’t know.

We have a lot of evidence to support these theories but we just don’t have the concrete science to tell you exactly why.

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