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Glow in the Dark

At the Cochin College of Fisheries in Kerala, India, the dwindling number of ornamental fish has provided an opportunity to do some genetic experimentation, reports Al Jazeera's Tarek Bazley. Certain species of ornamental fish are disappearing from the wild as they're being captured and smuggled out of India. At Cochin, researchers like CK Manoj are now trying new ways to breed the fish, and are adding things like genes to make the fish glow — the hope being that these genetically engineered fish will be more attractive to the ornamental fish trade so that the population in the wild can bloom again, Bazley says. But the worry, he adds, is that this work is being done largely without permission from authorities, and with almost no supervision.

The Scan

Missed Early Cases

A retrospective analysis of blood samples suggests early SARS-CoV-2 infections may have been missed in the US, the New York Times reports.

Limited Journal Editor Diversity

A survey finds low diversity among scientific and medical journal editors, according to The Scientist.

How Much of a Threat?

Science writes that need for a provision aimed at shoring up genomic data security within a new US bill is being questioned.

PNAS Papers on Historic Helicobacter Spread, Brain Development, C. difficile RNAs

In PNAS this week: Helicobacter genetic diversity gives insight into human migrations, gene expression patterns of brain development, and more.