CHILE’S VILLARRICA NATIONAL PARK—As a motley medley of mycologists climbed the basalt slopes of the Lanín volcano earlier this year, the green foliage at lower elevations gave way to autumnal golds and reds. Chile’s famed Araucaria—commonly called monkey puzzle trees—soon appeared, their spiny branches curving jauntily upward like so many cats’ tails.

Scientists decry reversal of U.S. abortion rights

Download PDF – KATIE LANGIN

For some, the ruling limits professional mobility and conference attendance

Dengue and zika viruses turn people into mosquito bait

Download PDF – MITCH LESLIE

To spread, pathogens drive mice, people to make odorant

Bad news for Paxlovid? Resistance may be coming

Download PDF – ROBERT F. SERVICE

In lab studies, SARS-CoV-2 finds ways to evade key drug. Some of the viral mutations are already found in people

It takes a (microbial) village to make an algal bloom

Download PDF – ELIZABETH PENNISI

More than nutrient levels may drive toxic lake growths