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The Evolution of the Atlantic Tomcod

No one ever said New York's Hudson River was clean. But instead of killing off the Atlantic tomcod that live in the river, the contaminants have forced the fish to evolve to adapt to their environment. A team of researchers recently published a study in Science that shows the Hudson River fish have a gene variant in AHR2, a six-base deletion that is absent in other tomcod populations. This suggests that AHR2 is the tomcod's "basis of resistance" to PCBs. Because only the Hudson River population has the deletion, the researchers suggest it was the contaminants in the river that forced this quick evolutionary change so the fish could protect themselves from their environment.

The Scan

Not as High as Hoped

The Associated Press says initial results from a trial of CureVac's SARS-CoV-2 vaccine suggests low effectiveness in preventing COVID-19.

Finding Freshwater DNA

A new research project plans to use eDNA sampling to analyze freshwater rivers across the world, the Guardian reports.

Rise in Payments

Kaiser Health News investigates the rise of payments made by medical device companies to surgeons that could be in violation of anti-kickback laws.

Nature Papers Present Ginkgo Biloba Genome Assembly, Collection of Polygenic Indexes, More

In Nature this week: a nearly complete Ginkgo biloba genome assembly, polygenic indexes for dozens of phenotypes, and more.