Straight to the Source
Sep 17, 2018
2 minutes
BY BENJI JONES
AS ANYONE WITH A FIRST cousin twice removed can attest, family trees are hard to decipher. But for a family that includes thousands of feathered species and more than a hundred million years of evolution, it’s proven near impossible.
For centuries, scientists relied on form and function to understand how birds relate to one another: If two
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