Tens of thousands of small barriers hamper fish recovery in the northeastern United States. But while the demolition of big dams out west gets the most attention, a similar revolution is revitalizing northeastern streams and rivers—one tiny dam at a time.

Dam removal is often described as rewilding rivers, but it also liberates the human imagination, the latest installment in Ben Goldfarb's Wildlife at the Crossroads series.

The smorgasbord "is but a feeble although refined outgrowth of the pagan feasts among the Vikings. ... The accent then was definitely on quantity, as those primitive gourmands cared little about the embellishment of the table or elegance in manner."

Tempting the Temperate: The smorgasbord in the age of Ozempic, by Thea Applebaum Licht.

Think of Spanish conquistadors bringing smallpox to South America and decimating human populations. B. terrestris is the conquistador of the pollinator world.

A newly introduced "workhorse insect" is displacing endemic bumblebees in Patagonia, unwilding the pollination ecology. A deep dive from Jude Isabella, formerly editor of (metafilter's own) defunct Hakai Magazine.