The creatures -- apparently possessed of the same preternatural powers as the bat -- had located the overly garrulous explorer through the sound of the poorly-chosen exclamatory remark.
As for the other punctuation mark that usually helps to drive extra traffic, the question mark, it doesn't offer the same punch as its exclamatory cousin.
Research has shown that in electronic discourse exclamation marks can carry a range of exclamatory functions, including apologising, challenging, thanking, agreeing, and showing solidarity.
He channeled his feelings into love poems that were exclamatory rather than persuasive, and wrote prose that showed his contempt for men who pursue women.