We also know Balto's wolf mother, Aniu has brown eyes. Balto had to be carrying a gene for blue eyes since his pups have them so Balto's father had to have at least one or two blue eyes. The reason that Balto has brown eyes is because blue eyes are extremely rare in wolves and are ressesive, so Balto would have needed both blue genes to be blue eyed. Jenna has brown eyes, so she must be a carrier for the blue gene as well, concluding that both or one of her parents had blue eyes or they were both carriers too.
Here's some gene visual help:

dominent-BB (brown eyes)
carrier- Bb (has brown eyes/ one brown eye but can produce blue eyed pups)
recessive- bb (blue eyes)

Aniu         Balto's Dad            Jenna's Parents
BB               bb or Bb               BBxbb or BbxBb

Balto            Jenna                  blue eyed pups         brown eyed pups
Bb                  Bb                           bb                           BB or Bb


I'll sum it up too:

-two bb dogs can only have blue eyed pups
-two BB dogs can only have brown eyed pups
-two Bb dogs would create one BB pup, two Bb pups and one blue eyed pup
-bb dogs don't carry gene for brown
-BB dogs don't carry gene for blue
-only Bb and bb can have blue eyed pups

And there you have it!!!
I hope this was better then my last article even though I'm sure this was boring!!!!!:)