We always hear about how big ancient sharks, alligators, birds were. What was the advantage of being such a massive size and what caused them to become smaller? To my understanding its best to be smaller because of the square-cube law, then why are there exceptions like whales?
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It’s just that larger animals became fossilized. Smaller ones just rotted away or were consumed.
The smallest reptile today is less than an inch. There is no reason not to believe there weren’t thousands of species of reptile from 1/2 inch to 100ft. We just don’t know.
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