Leah Clearwater. She isn't actually mentioned to be a werewolf until Eclipse, but she and her brother (Seth Clearwater), both turn into werewolves/shapeshifters in New Moon. That's why their dad had a heart attack.
Leah Clearwater becomes a werewolf in the "Twilight" series because she carries the werewolf gene in her bloodline. It's not specified why she is the only girl among the werewolves in the series, but it likely has to do with the likelihood or rarity of the gene being passed down through the female line in her family.
Emily is Sam's fiance, not yet his wife, and no -- she is not a werewolf. Leah Clearwater is the first and only female werewolf in Quileute history.
Jacob Black is talking to Leah at the end of "Eclipse"
In the Twilight saga, Leah Clearwater is not the only female werewolf. There are other female werewolves in the Quileute tribe, such as Rachel Black.
Leah is the only female werewolf in the history of the tribe, and her first transformation is believed to have caused the heart attack that killed her father, Harry Clearwater.
Werewolf-ism is a rare trait through out the Quilute tribe, only Quilute kids get it if they were born with the trait. Leah was born with it.
She has auditioned for the part of Leah Clearwater(werewolf and only-daughter of Sue and Harry Clearwater + ex-highschool sweetheart of Sam Uley), but it isn't official who has the part. She auditioned to play Leah, werewolf girl. But the final decision is unknown yet. she'd do a pretty good howl though, all she has to do is sing!!! -twilight- i heard she did - for Leah Clearwater ~ they said they wanted a native American to play the part. People say she's not. So, i think so, But Leah won't be in new moon, she'll be in eclipse. Personally I think Vanessa will make a beautiful role as Leah Clearwater.
Jacob, Seth, Sam, Quil, Embry, Paul, Jared, and the only girl Leah
You can't. The only way to become a werewolf is to be born that way. Werewolves are commonly men, but in Twilight, Leah is a werewolf and a female. The only way is to be born a human, and when reaching a certain age, turning into a werewolf. More commonly known as "morphing".
The critical factor is not the moon but moon-light. As the moon does have a rotational period (the same as its orbital period about the Earth) any one spot on the moon's surface is illuminated for only 15 days. Therefore a werewolf on the moon would be in his wolf-phase for only every other 15 days.
Leah Clearwater is the only female werewolf in the Twilight series. She transforms into a werewolf during the events of "New Moon" and becomes the first and only female member of the Quileute shape-shifting wolves pack.
No, they can only kill during a full moon when they are transformed into a werewolf. Unless they are a serial killer. Then they can kill whenever they please.
Leah Clearwater