I understand, generally, *how* they got that big but not *why*. What was the evolutionary advantage to their massive size? Is there one? Or are they just big for the sake of being big?
In: Biology
There is no “why.” That’s not how evolution works. There is no plan, there are no ideas being expressed, there are no reasons for this or that. Evolution is random chance. Successful chances survive well in their environment, and are able to reproduce. Unsuccessful chances die off.
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