Shape-shifters

Edwards description of the La-Push werewolf pack. The shapeshifters could transform into a certain shape, not really at-will, but close to it. True werewolves are known as children-of-the-moon. The fact that they change into wolves is simply more a matter of chance. Children-of-the-moon infect people in a similar way to vampires. They bite. The Quileutte wolves pass on the shape-shifting gene father to son, or daughter.

Breaking Dawn
In Breaking Dawn, Caius especially wanted to use them as an excuse to destroy the cullens and their "followers". This is because he wanted an excuse to destroy them and he did not like the werewolves. In fact, he despised them because he once got into a fight with a true child of the moon/werewolf and almost lost. Edward steps in at this point to point out that they are not truly werewolves because they llok slightly different and are wolves in full sunlight, not needing full moon to change.

Description
The La-Push wolfpack all look alike except that they are different in coloring and markings. Sam, the leader, is midnight black, Jacob is russet-colored, similar to his skin tone. Seth Clearwater is the color of desert sand while his sister, Leah, is light gray. Embry is also grayish, but darker with black spots along his back. Quil is chocolate brown. Other wolves have similar markings. All of the wolves, with the exception of Leah, are roughly the size of horses, and all look exactly like wolves, which is what they are. Leah, being a girl, is smaller than the others.

Specialties
The Quileutte wolves are all very fast, with Leah being the fastest. They can run as fast as the average vampire, Leah a little more ahead. When in their wolf form, they can hear eachothers thoughts, in a combination of what Aro can do. They hear everything that passes through eachothers mindss, but also everything else. they literally can't hide what they think or ever think. The Alpha, Sam first and later Jacob in a separate pack, can command the other wolves what to do. He is not only the leader, but he must be obeyed. The wolves have no choice, you cannot resist the Alpha. Imprinting is another specialty of the wolves. When a werewolf sees his true soul mate, he imprints on her. This si described to like "gravity moves". The object of imprinting is what ties them to being, or, thats what they feel like. It isnt always love at first sight, because the object can be very young as well.

Legends
The Quileutte wolves supposedly happened long ago. Long ago, the Quileutte people were spirit warriors. This meant that their spirits could leave their bodies. But after a while, after a tragedy and conspiracy by and upset warrior, the tribal cheif is left without his body, or any body. Unable to bear being bodiless, he "moved in" witha large and beautiful wolf. When the spirit chief was angered with the passion of a man, the wolfs body he was chaning shifted into a mans body. Ever since, the descedants of this spirit chief found that they too could shift into wolves upon reaching adulthood, or when something extremely angering them happened, the wolves then on existed only when vampires came. When no vampire came, the genetic quirk would skip a generation. When the Cullens arrived the first time, the wolves came back and made a treaty. Later, when the Cullens returned, they set things in motion so that JAcobs generation changed into wolves when they reached maturiry, or around the age of 15-17.