Tuesday, June 26, 2007
In Parasite Survival, Ploys to Get Help From a Host - New York Times: "the horsehair worm, which thrives as a larval youth inside a cricket or grasshopper, but must be delivered to a stream or lake to breed. Healthy crickets and grasshoppers are devoutly terrestrial and do not go swimming. A parasitized insect, however, finds itself with the odd compulsion to head for the nearest body of water and jump in, at which point the ripened, writhing worm bursts its host apart like a comic book villain rupturing from a mild-mannered disguise, and starts seeking another freshly born-again worm."
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