*Why* are blue whales so big?

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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

13 Answers

Anonymous 0 Comments

The part that confuses me about whales is that they’re mammals, right? So the biggest sonofabitch in the ocean went onto land long enough to lose gills, then crawled BACK into the ocean for a quick dip that’s lasted the last few dozen million years or however long.

Is that pretty much it?

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