Upon consideration of the petitioner-appellant’s petition for rehearing, the opinion, Arthur v. Allen, 452 F.3d 1234 (11th Cir. 2006), we make the following modifications.

The discussion and analysis that follows the second paragraph under IV. DISCUSSION, B. Arthur’s Claims of Exception to the Statute of Limitations, 2. Entitlement to a Hearing and Discovery, 452 F.3d at 1247-48, is deleted, and the following is substituted in its place:

Generally, “[a] habeas petitioner ... is not entitled to discovery as a matter of ordinary course,” but may be obtained upon showing “good cause,” Bracy, 520 U.S. at 904, 117 S.Ct. at 1796-97, to believe that the evidence sought would “raise[ ] sufficient doubt about [his] guilt to undermine confidence in the result of the trial.” 1 Schlup, 513 U.S. at 317, 115 S.Ct. at 862. Good cause is demonstrat *1311 ed “ ‘where specific allegations ... show reason to believe that the petitioner may, if the facts are fully developed, be able to demonstrate that he ... is entitled to relief.’ ” Bracy, 520 U.S. at 908-09, 117 S.Ct. at 1799 (quoting Harris v. Nelson, 394 U.S. 286, 300, 89 S.Ct. 1082, 1091, 22 L.Ed.2d 281 (1969)). Thus, good cause for discovery cannot arise from mere speculation. It is not enough, for example, to allege that “DNA testing could demonstrate that the same person who raped Judy Wicker also physically assaulted her, that this person’s blood was on her blouse, that his hair was found in the Wicker residence, that he was in Judy Wicker’s 1981 Buick Riveria, and that this person was not Mr. Arthur.” Arthur’s Petition for Rehearing at 14.

Recognizing that discovery cannot be ordered on the basis of pure hypothesis, Arthur’s request relies heavily on the affidavits of High and Melson. But the credibility of those documents is fundamentally wounded by the affiants’ own substantial retraction of the very content advanced to support Arthur’s new alibi. For this reason, the affidavits do not furnish good cause to believe that the facts, if “fully developed” through the discovery sought, would be any different from those found at trial. See Bracy, 520 U.S. at 909, 117 S.Ct. at 1799. The district court did not abuse its discretion in denying Arthur’s request for discovery and an evidentiary hearing.

In all other respects, the petition for rehearing and rehearing en banc is DENIED.