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Summary
https://science.sciencemag.org/content/371/6536/eaax9050 A. hydrillicola, growing in colonies on aquatic vegetation, produces the neurotoxin AETX. Waterbirds, tadpoles, aquatic turtles, snails, and fish consume this contaminated vegetation and develop VM. Predators develop VM when they consume animals that have been grazing on A. hydrillicola–covered plants.

IMAGE CREDITS: GREENFROG TADPOLE, B. GRATWICKE; AMERICAN COOT, G. S. SEGLER; GRASS CARP, R. HAGERTY; SNAIL KITE, SIRKFISH; PAINTED TURTLE, U.S. FISH AND WILDLIFE SERVICE; BALD EAGLE, W. H. MAJOROS. IMAGES ARE ALL UNDER THE CREATIVE COMMONS ATTRIBUTION GENERIC LICENSE

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