2 What did the scientists do?
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For the research to be conducted scientists had to determine the size of the skeletons. And however hard it might seem to be, they were able to estimate the length of 63 species. >Here's how:
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3 What caused this change in size?
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As they continued their research, the scientists noticed that something had changed in recent past that turned the blue whales into giants we know today.
It wasn't long until they realized that it has something to do with the climate change. And with a mere glance at the timeline, they instantly knew this evolutionary shift that occurred 2-3 million years ago matches the beginning of Ice Ages.
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