In November 1988, Marvel launched an ongoing Wolverine solo book written by Claremont with art by John Buscema. It ran for 189 issues. Larry Hama later took over the series and had an extensive run. Other writers who wrote for the two Wolverine ongoing series include Peter David, Archie Goodwin, Erik Larsen, Frank Tieri, Greg Rucka, Mark Millar, and Gregg Hurwitz. Many artists have also worked on the series, including John Byrne, Gene Colan, Marc Silvestri, Mark Texeira, Adam Kubert, Leinil Francis Yu, Rob Liefeld, Sean Chen,Darick Robertson, John Romita, Jr., and Humberto Ramos. During the 1990s, the character was revealed to have bone claws, after his adamantium is ripped out by Magneto in X-Men #25, which was inspired by a passing joke of Peter David’s.