Synonyms that are in the dictionary are marked in green. Synonyms that are not in the dictionary are marked in red.
Antonyms that are in the dictionary are marked in green. Antonyms that are not in the dictionary are marked in red.
After testing the sea urchins for genetic clues, scientists found that single-celled creatures known as ciliates were making them sick.
Source: https://www.wbbjtv.com/2023/04/22/mystery-solved-scientists-id-caribbean-sea-urchin-killer/