In a new study in PNAS, researchers at Penn State and the University at Buffalo say their analysis of polar bear DNA has led them to extend to origin of the species back to five million years instead of 600,000 years, reports The New York Times' James Gorman.

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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.