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Antonyms that are in the dictionary are marked in green. Antonyms that are not in the dictionary are marked in red.
Photo compilation showing the same sea urchin before and after infection with the ciliate in the USF aquarium research facility.
Source: https://phys.org/news/2023-04-massive-caribbean-sea-urchin-die-off.html
This photo provided by researchers shows a ciliate parasite-affected sea urchin, center, and a normal-looking one, left, in St. John, U.S. Virgin Islands, in April 2022.