-
Anna Efetova/Getty Images -
A fruit fly, one of the parasitic worm's favorite victims. Photo: nechaev-kon / Getty Images -
Francescoch/Getty Images -
Alxpin/Getty Images -
Dragon Claws/Getty Images -
KATERYNA KON/SCIENCE PHOTO LIBRARY/GETTY IMAGES -
Daniel Garrido/Getty Images -
Photo: Jena Ardell / Getty Images -
Westend61/Getty Images -
Anadolu/ Contributor/Getty Images
