​The ecologist wrote that “The experience was a once-in-a-lifetime thrill.”

​Use that or as to introduce the quotation.

​The ecologist wrote, “The experience was a once-in-a-lifetime thrill.”

​Use a comma and capitalize the first letter of the quotation.

​Text quotations: When you include parts of another text in your work, copy the words exactly and include any internal punctuation marks. Then enclose the quote in quotation marks.

Some text here about the topic of discussion