Tue, 05 May 2026 23:06:43 +0000

Shocking Facts About Horse Hair Worm—It’s More Dangerous Than You Think! Have you ever heard of a parasite so terrifyingly clever that it manipulates its host before taking its final, deadly step? Meet the horse hair worm (azyoperiphysis or * macrophilostoma), a microscopic, hair-like nematode that turns horses—and other animals—into its next host in one of nature’s most grotesque survival strategies. While small and often overlooked, the horse hair worm is far more dangerous than most realize. Here’s what you need to know about this hidden threat. --- ### What Exactly Is a Horse Hair Worm?