Neanderthal Men and Human Women Were Most Likely to Hook Up, Study Finds. Geneticists have found an interesting pattern in how early humans and Neanderthals interbred—and it wasn't balanced.

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# List checkpoints

In a dividing cell, chromosome pairs are pulled apart thanks to attachment sites called centromeres. Yeast genomes reveal key steps in how centromeres have evolved.

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Israel has just preemptively struck Tehran

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