The entire Wolf pack appears to be sporting some ink on their (right) shoulder.

"They had to have papers that proved their heritage," saysWolves with the actor's eyes? That to me sounds genius! Can't wait to see what it will look like =)
director Chris Weitz, who was the one who insisted on hiring within the
community. "And they had to be in good physical shape."
The Twilight
sequel is filming now, and between takes, the actors usually are working out
with barbells, doing push-ups or chowing down on steak, Weitz says. "They went
through wolf camp together, and they are in constant training. It paid off as a
bonding thing for them and helped them to get to know one another. They drove
each other to get more buff."
Instead, the transformations are
computer-generated, although one part of each wolf might seem familiar.
"They all have the actor's eyes," Weitz says.

Unlike cold-blooded neck biters, these poster guys for animal magnetism are hot. So hot that their temperature runs a steady 108 degrees, as anyone who has read Stephenie Meyer's series of gothic romances knows.
That gives them a great excuse to doff their shirts on-screen and expose the physiques they've been pumping up for playing werewolves in The Twilight Saga:New Moon, the sequel to last year's supernatural sensation, due Nov. 20.
Four actors — Chaske Spencer, Alex Meraz, Kiowa Gordon and Bronson Pelletier, all with Native American heritage — join Taylor Lautner, 17, who returns as a hairier, scarier Jacob Black. The plotline finds Jacob growing closer to a distraught Bella (Kristen Stewart) after her vampire beau, Edward, runs off.
Among wolf pack job requirements: the ability to work half-naked no matter what the weather in the Vancouver, B.C., area, where the film has been shooting for several weeks.
"It's not pleasant for the actors," says director Chris Weitz. "But they have all been good-natured. They show up on location in drenching, cold rain, and I say, 'OK, off with the robes.' "

"Anyway, the wolves have been shooting with Taylor Lautner and Kristen Stewart all week. Robert Pattinson has stayed away from set. His scenes haven’t come up yet. Still training, still hiding. You’ve seen the emails I’ve been receiving. And Pina from yesterday isn’t even the craziest loser-ist of the all. Can you blame the boy for trying to disappear? They say he’s presenting tomorrow at Kids’ Choice. Rob on a red carpet. Don’t lie. I know you’ve been waiting all week for it!"

SUMMIT ENTERTAINMENT RUNS WITH THE WOLF PACK IN THE TWILIGHT SAGA: NEW MOONChaske Spencer, Bronson Pelletier, Alex Meraz, Kiowa Gordon and Tyson Houseman to Star as Members of Wolf Pack Los Angeles, CA March 23, 2009 — Summit Entertainment announced today that Native American/First Nation actors Chaske Spencer, Bronson Pelletier, Alex Meraz, Kiowa Gordon and Tyson Houseman have signed on to star as the members of the wolf pack in THE TWILIGHT SAGA: NEW MOON. In the film, the wolf pack defends humans against vampires although they have a tribal history intricately entwined with Edward Cullen and his family. The wolf pack members will join Kristen Stewart, Robert Pattinson and fellow wolf pack member Taylor Lautner in the film directed by Chris Weitz which will be released domestically November 20, 2009.it's also realy awesome to note that 3 million copies o f Twilight was sold on the first day of release! That's in the States alone right? Wait til it's released in other countries. I know HEAPS of people buying more than one copy hehehe
Each member of the wolf pack is of Native decent. Spencer is Lakota (Sioux), Pelletier is Cree-Metis, Meraz is Purepecha (Tarasco), Gordon is Hualapai, and Houseman, who was discovered at an open casting call, is Cree. Casting of the wolf pack was overseen by award-winning casting director Rene Haynes who is well-known for her work on Native projects ranging from DANCES WITH WOLVES to BURY MY HEART AT WOUNDED KNEE.
Posted the first photos yesterday of Jacob and his pack. You Twilight fans have been emailing about names and characters. This morning’s fried rice is making me nice. So today, exclusively, here’s how the wolves break down:note there is no Seth....which is how it's meant to go. Speaking of which, they better cast an adorable Seth! I know heaps of people who love Seth.
Taylor Lautner: Jacob Black
Chaske Spencer:Sam Uley
Tyson Houseman: Quil Ateara
Alex Meraz: Paul
Kiowa Gordon: Embry Call
Bronson Pelletier: Jared
Tinsel Korey: Emily

"See the guy in the back over Taylor Lautner’s shoulder in this Punkd photo?
That is none other than Tyson Houseman, and we can exclusively report this after
discovering a post on his talent agency website that confirms it is true. On the website,he is listed with a role in New Moon, and it also includes a headshot that shows he is identical to the person in the photo, making this 100% certain. On the
agency website, it lists his specialties as snowboarding, skateboarding & guitar and his acting experience so far has been solely stage work."