Why have many species after dinosaurs not reached such huge sizes?
In: Biology
Alligators grow to the size that is sustainable by food and territory available.
If an alligator is 3 feet long for 10 years, then is moved to an area that will sustain a 6 ft alligator, it will begin to grow again, until it again reaches the limits of the available resources.
Dinosaurs may have been similar.
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