This Week in PNAS

In the early, online edition of the Proceedings of the National Academy of Sciences, a team from Japan describes endosymbiotic Nardonella bacteria that contribute to the formation of the thick, crusty cuticles surrounding hard beetles. The researchers began by sequencing larval bacteriomes from four weevil species, using the reads to put together genome assemblies for Nardonella symbionts in these weevils.

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Parabon NanoLabs is partnering with law enforcement to use genetic genealogy approaches to solve cold cases, Buzzfeed News reports.

A Columbia University-led team used emergency contact information from medical records to create family trees and estimate disease heritability.

In Science this week: ancient Southeast Asian genomes provide insight on human migration, and more.

NPR says a new report recommends that former research chimpanzees should be moved to retirement sanctuaries unless that move would shorten their lives.