Physically
New Born - 12 weeks = Pup
12 weeks - 1 1/2 years = Teenager
1 1/2 - 3 years = Young Adult
3 - 6 years = Adult
6 - 11 years = Elder
Approximately 11 - 15 years = Death
"Mentally"New Born - 1 1/2 years= Pup
1 1/2 years - 2 1/2 years = Teenager
3 years - 5 years = Young Adult
5 - 8 1/2 years = Adult
8 1/2 - 11 years = Elder
Approximately 11 - 15 years = Death
A wild wolf usually lives to only about 5 - 7 years. In captivity, wolves may live up to 15+ years, if they're lucky. Pups growing up 10 - 13 days: the eyes open
3 weeks: the milk teeth appear, they start to explore the den
4 - 5 weeks: short trips outside the den, begin to eat meat
6 weeks: moving up to a mile from the den (with adult wolf)
12 weeks: begin to travel with the pack on hunts (with adult wolves)
15 - 28 weeks: milk teeth are replaced
7 - 8 months: begin to hunt with the pack
1 week old
4 weeks old
6 weeks old
12 weeks old
18 weeks old
1 year old
3 years old
6 years old
source:
http://thepackroleplay.weebly.com/wolf-ages.html 
