<P> Meyer has said that after Jacob started emerging as a prominent character in New Moon . </P> <P> Jacob is given a small role in the first book of the series . He is introduced as the son of Billy Black, an old Swan family friend . When Bella uses him to get information on Edward Cullen and his family, Jacob tells her Quileute legends and introduces her to the idea that Edward is a vampire . Bella comes to like Jacob, and he develops a crush on her . </P> <P> In New Moon, Jacob's character is used as a device to help Bella emerge from her months - long depression, brought on by her distress over Edward's departure . The friendship between the two characters grows strong, but Jacob also develops romantic feelings for Bella that she does not reciprocate . It is revealed that, as a member of the Quileute tribe, Jacob is descended from an ancient line of "shapeshifters" that assume wolf form . In their backstory, the Quileutes are vampires' mortal enemies as the vampires are to them . When Jacob undergoes his first transformation into a wolf, it is in response to Paul one of the pack becomes enraged when he was slapped by Bella causing him to transform prematurely and then attempts to attack her . Jacob noticing this rushes outside to defend Bella he jumps high over her and changes form in midair . Jacob rushes at Paul first and bites and pushes him . Jacob is shown in this scene to be very talented even when this was his first transformation at attacking and countering Paul as he is able to hit him before he has a chance to attack . A scene shows him tackling Paul causing him to crash into a boat rack . He and Paul later arrive at Emily Young house . Soon, he becomes busy patrolling the forest with his pack, searching for vampires in the area . When Bella is caught by the vampire Laurent alone in a clearing, she is saved by Jacob and the wolf pack, who chase and kill Laurent . Sam first emerges from the woods, Laurent noticing more emerge runs an away . Sam closes in on him but is struck back by Laurent just before he was about to tackle him . He later claims that Laurent was nothing but a simple kill . During the chase, Laurent is cornered by part of the pack while Jacob goes for the kill . Jacob and his friends are able to cover a range of 1.67 miles in just 1 minute meaning they are able to run at nearly or close to 100 mph at full run . </P> <P> Jacob serves as a rescue for Bella and a foil to Edward on multiple occasions in the narrative . When Bella, who has taken increasingly dangerous risks to feel closer to Edward, impulsively jumps off a cliff and almost drowns, Jacob rescues her . After Edward mistakenly believes she has died and plans to kill himself, Bella and Edward's sister, Alice Cullen, rush to Italy to prevent his suicide, leaving Jacob hurt and resentful . Jacob is disgusted by Edward's return and by Bella's willingness to take Edward back after he left her . Jacob reminds Edward of his tribe's treaty with the Cullen family, which states that the Cullens are not allowed to bite humans . Bella interrupts and points out that she wants to become a vampire, therefore it is not Jacob's problem . Though this angers Jacob, who attempts to start a fight with Edward . Edward decides to leave with her then Jacob grabs him and says "you don't speak for her" causing Edward to uppercut punch him into the air causing him to transform and attempts to kill Edward but is stopped immediately by Bella as she says "You can't harm each other without harming me ." Jacob now feeling full of guilt and knowing that he would not harm her due to him still having a tremendous crush on her and her being his best and closest friend to kill Edward decides to accept her wish but he is feeling hurt by her decision which he then runs away . </P>

What is the name of jacob tribe in twilight