Remember in the beginning Derek told Scott sometimes you show what you are instead of transforming into a wolf? I think that mostly happens when you're changed in non-traditional ways. So Jackson was clawed by Derek after he was poisoned by that rare wolfsbane, then when he finally got bitten he had wolfsbane in his blood so he didn't go straight wolf, he became the snake he is on the inside. Kate basically got clawed deep into her throat by Peter and comes back as the vicious killer she is. So either the werecoyote is born that way, or more likely, Malia's mother had something similar happen to her and she didn't transform fully into a wolf because she's good at blending in and hiding in pain sight like the coyote. Peter is a born wolf so I'm thinking Malia gets the coyote gene from her mother. And yes, Kate's pedophile behind is trash and she needs to go.
