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Hey, We're Not Done Yet

University College London's Steve Jones says that human evolution is slowing down due to a number of factors, including life expectancy, different timing of reproduction (particularly for men), and intermarriage. Both Gene Expression's Razib and Evolving Thought's John Wilkins say this isn't so. Razib unpacks Jones's arguments to walk through how population genetics really works. Wilkins writes, "Actual studies on wild populations show that evolution is not a monotonous gradual process always and everywhere the same, but a process of fits and starts, diffusion and collection, and where one pressure is removed, others take its place immediately."

Or are we accelerating?

The Scan

Could Cost Billions

NBC News reports that the new Alzheimer's disease drug from Biogen could cost Medicare in the US billions of dollars.

Not Quite Sent

The Biden Administration likely won't meet its goal of sending 80 million SARS-CoV-2 vaccine doses abroad by the end of the month, according to the Washington Post.

DTC Regulation Proposals

A new report calls on UK policymakers to review direct-to-consumer genetic testing regulations, the Independent reports.

PNAS Papers on Mosquito MicroRNAs, Acute Kidney Injury, Trichothiodystrophy

In PNAS this week: microRNAs involved in Aedes aegypti reproduction, proximal tubule cell response to kidney injury, and more.