Board Thread:Legitimate Canon Questions/@comment-26824748-20150727022135/@comment-4091815-20150727024215

Canon says the shape one takes after a werewolf bite can sometimes be determined by the individual's personality.

In the case of Jackson Whittemore (bitten by Derek) that shape was Kanima.

In the case of Kate Argent (scratched by Peter) that shape was Werejaguar