Werewolf packs usually consist of two or three groups, the Alpha Wolf, Beta Wolves, Omega Wolves and in some cases the Alpha-Beta. Wolves create packs because the bigger the pack the stronger they are. Also, because they use number as strength.
Alpha werewolves are created through being cursed, born a werewolf or by spell or bite. Alpha werewolves turn into wolf-like creatures at the night of the full moon and when they feel threatend. They have the ability to create betas through bites. Betas can also become Alpha werewolves, by killing his/her own Alpha wolf, who overtime become experienced enough and strong enough. Alphas don't necessasrily need a pack but in order to be strong they need a pack. Or can form a Alpha pack, just made of Alpha's.
Beta werewolves are people who are bitten by alpha werewolves.
Beta werewolf transformations are not as strong as Alpha werewolf transformations and tend to grow slight amounts of hair with elongated nails and teeth.
Beta werewolves depend on the alpha werewolf they are under can be forced to transform against their will.
A beta werewolf can be turned into a alpha if they kill the alpha, or if they aretrue of soul.
Watching Teen Wolf on MTV is a very good demonstration.
Omega Werewolves are always alone since they either got kicked out of the pack by the leader, the Alpha, or they chose to travel alone. Since they have no pack, they were easily killed by hunters. They would usually be called 'The lone wolf'. As lone wolves, omegas tend to be weaker than alphas and betas however in certain cases omegas can be stronger than an alpha. Omegas can also start their own packs. And when they were in a pack they were the last to get stuff as in food shelter and as they where mostly treated badly by betas and alphas.
Some omega werewolves can have a pack but they are still the weakest and most can't transform , the only thing that changes is the color of their eyes,and their teeth and nails sharpen.
The Alpha-Beta Edit
The Alpha-Beta is a mix between beta and alpha. This is very rare. This can only happen on the weridiest occuscations when a alpha from him/hers blood line and someone who is a beta from his/hers blood lines bits the person on each arm. This type of werewolf can change the colors of its eyes. The whole eye black is the orginal color of its eyes. But two colors can't be changed manualy. Which are purple is the color of love. Pink is remorse, after the alpha-beta kills someone it crys in human form for 2 whole days with its eyes pink. Now the best thing about the alpha-beta is to confuse you. It can change colors of its eyes to show differnet status of its pack making it look like twins or many of the same people with different eyes. In special cases does this ever happen. But insted of black the main color the human can switch the automatic color. One of the orginal settings besides black is green. Green has no status color which scares other werewolfs and hunters. All in all the alpha-beta is the ultimate werewolf.