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A Mystery Species Was Discovered in Trafficked Pangolin Scales

DARREN INCORVAIA

Researchers believed there were eight species of the strange mammals. But a ninth was identified genetically, although no one knew it was a separate species in the wild.

Nuclear Fusion Breakthrough Gets a Bigger Burst of Laser Energy

KENNETH CHANG

Researchers at the National Ignition Facility during a July firing of 192 lasers improved on a December result, but also ended up with duds in other experiments.

Online Marijuana Shops Make It Easy for Minors to Buy, Study Finds

MATT RICHTEL

Many online marijuana dispensaries do not enforce age limits on purchases and have other lax policies that enable minors to buy cannabis on the internet.

In Peru, a Fossil-Rich Desert Faces Unruly Development

MITRA TAJ AND MARCO GARRO

The Ocucaje Desert, where paleontologists recently unearthed the ancient skeleton of the world’s heaviest animal, is being overtaken by human settlement.

Arsenic Preserved the Animals, But Killed the Museum

KATRINA MILLER

A popular taxidermy exhibit in Sioux Falls, S.D., was closed after the toxic substance was discovered laced throughout the specimens. Many lament the loss of the “works of art.”

In Hospitals, Viruses Are Everywhere. Masks Are Not.

APOORVA MANDAVILLI

Amid an uptick in Covid infections, administrators, staff and patients are divided over the need for masks in health care settings.

Satellites Show Mysterious Fairy Circles in More Parts of the World

RACHEL NUWER

Researchers say that “fairy circles,” which had mostly been studied in Namibia and Australia, may exist in 15 countries.