the.com/parasitology

The study of nature's freeloaders, who pay rent in your bloodstream with eviction notices.

means The branch of biology and medicine devoted to parasites — organisms that live on or inside a host — and the diseases they cause.

from Built from Greek roots: parasitos, literally "one who eats beside another," stitched from para- ("beside") and sitos ("food, grain"), plus -logia ("the study of"). The Greek parasitos originally named a very human creature — the flatterer who showed up uninvited to dine at a wealthy patron's table — before science borrowed the word for biology's uninvited dinner guests.

mind control
Toxoplasma rewires rodent brains to love cat urine
body count
Parasites infect roughly half of all humans alive
tongue thief
One isopod eats and replaces a fish's tongue
ancient enemy
Tapeworm eggs found in 270-million-year-old fossils
zombie ants
A fungus steers ants to die in ideal spore spots
for instance

sleeping sickness — transmitted by tsetse fly in sub-saharan africa, affects 10,000+ people annually

guinea worm disease — dracunculus medinensis parasite, nearly eradicated from 21 countries by 2015

schistosomiasis — parasitic flatworm affecting 240 million people in 78 countries, especially sub-saharan africa

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