May 30, 2026
Plague, panic, then poof
What Happened to the Locusts?
America’s nightmare bug swarm vanished—and commenters are obsessed with how humans did it
TLDR: The Rocky Mountain locust went from a swarm of trillions that blacked out the sky to total extinction, likely because settlers destroyed its small breeding grounds. Commenters were hooked by that irony, while others joked that the terrifying "biblical plague" turned out to be giant grasshopper drama.
This story has everything: biblical horror, pioneer disaster, mystery extinction, and a comments section that immediately turned into a mix of history class, bug trauma, and surprisingly wholesome web-design praise. The article recounts how the Rocky Mountain locust once arrived in numbers so huge they blocked the sun, stopped trains, ruined crops, and helped push settlers toward famine—only to disappear a few decades later. The wild twist, and the detail readers latched onto hardest, is that this "plague" may have been wiped out not by heroic bug-killing inventions, but by ordinary human settlement. As one popular comment neatly summed it up, the species had a giant travel range but only a tiny breeding home, and once those river valleys were plowed, irrigated, and trampled, it was game over.
The community mood was a delicious blend of "wow, nature is terrifying" and "wait, they were basically just grasshoppers?" One commenter confessed childhood Sunday school had sold them a demonic nightmare, only for adulthood to reveal a much less metal truth: locusts are "just grasshoppers." Another reader geeked out over the article’s explanation of swarm behavior and the creepy idea of a forced cannibal march, which sounds like a horror movie no one asked for. And in classic internet fashion, amid all the famine and extinction, someone popped in to applaud the site’s typography and clever UI like they’d wandered into the wrong thread on Hacker News. Even the tiny "Nice Easter egg" reply added to the vibe: this wasn’t just a history post, it was a full-on comment-section field trip.
Key Points
- •The article focuses on the Rocky Mountain locust, whose swarms devastated 19th-century settlers across the U.S. Great Plains.
- •Albert’s Swarm of 1874 is described as covering about 198,000 square miles and containing an estimated 12.5 trillion insects.
- •The swarms destroyed crops, polluted water, damaged supplies, and contributed to famine conditions for tens of thousands of settlers.
- •The Rocky Mountain locust later went extinct, with the last specimen reportedly collected in 1902.
- •The article describes early responses as improvised by farmers and later supported by government-backed scientific investigation, including work associated with Charles Valentine Riley.