How did scientists determine if the shrimp were two different species? This is the article my teacher is wanting us to get the answer from, don't know/didn't see the answer in the article, so if someone could please answer my question, that would be great!
Here is the article: https://flexbooks. ck12.org/cbook/ck-12-middle-school- life-science-2.0/section/4.9/primar y/lesson/origin-of-species-ms-ls

(Willing to give brainliest)