And Four

In Nature this week, Harvard Medical School researchers published a study showing that there may have been three migratory waves from Siberia to the Americas thousands of years ago, instead of one as was originally thought — a large one before 13,000 years ago, followed by two smaller ones.

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An artificial intelligence-based analysis suggests a third group of ancient hominins likely interbred with human ancestors, according to Popular Mechanics.

In Science this week: reduction in bee phylogenetic diversity, and more.

The New York Times Magazine looks into paleogenomics and how it is revising what's know about human history, but also possibly ignoring lessons learned by archaeologists.

The Economist reports on Synthorx's efforts to use expanded DNA bases they generated to develop a new cancer drug.