It is not that pearls fetch a high price because men
have dived for them. --Whately.
Note: The colloquial form dove is common in the United States
as an imperfect tense form.
All [the walruses] dove down with a tremendous
splash. --Dr. Hayes.
When closely pressed it [the loon] dove . . . and
left the young bird sitting in the water. --J.
Burroughs.
2. Fig.: To plunge or to go deeply into any subject,
question, business, etc.; to penetrate; to explore.
--South.