In Season 3B, Malia Tate is a fully transformed werecoyote. During a car crash that killed her mom Evelyn and her younger sister, Malia had survived and shapeshifted then lived in the wilderness for eight years as a fully shapeshifted coyote. She is discovered by Scott and Stiles, restored to human form by Scott's Alpha Roar. Afterwards, Malia joins Scott's Pack, becomes Stiles Stilinski's girlfriend, she enrolls in Beacon Hills High School and the Pack assists her with integrating back into human society. In Season 4, Malia readjusts to her humanity and learns she was adopted, and her biological parents are Peter Hale, and a werecoyote known as the Desert Wolf. In Season 5, Malia discovers the Desert Wolf caused her family's car accident that claimed the lives of her mother and little sister. In revenge, Malia seeks to take down and kill the Desert Wolf, forming an alliance with Braeden and distancing herself from the Pack to this end. Because of the stress of the fight against the Dread Doctors and the manipulations of Theo Raeken, Malia and Stiles end their relationship. Soon afterwards, Malia regains her confidence, rejoining the Pack and gets justice for her family, defeating her mother.
Due to living as a coyote in the wilderness for eight years, Malia is very in touch with her animal side. She is abrasive, independent, tough quick to fight, cynical and tends to speak her mind. She displays a fight-or-flight, as well as a survival-of-the-fittest mentality and shows little regard for social ettiquette, being ignorant of general human behavior. Initially she is unhappy living as a human.
Malia is haunted due to her horror and guilt over her out-of-control shapeshifting that caused the deaths of her adoptive mother Evelyn and little sister, and struggles over not being able to talk to her dad Henry about it. To this end, she wished to return to living as a coyote.
Nonetheless, after seeing life through human eyes, falling for Stiles and maintaining her relationship with him, Malia grows out of this mindset. Upon becoming a member of Scott's Pack, though she struggles academically, she comes to demonstrate a quick mind, being determined, upbeat, valiant, and develops a close camaraderie with those she cares.
Though having lost much of her more animalistic mannerisms, Malia is still feral in more ways than one, feeling betrayed over Stiles and the Pack keeping her out of the loop she was adopted, and that Peter Hale is her biological father admitting she's unfamiliar in the concept of forgiveness.
Though she's close to her adoptive dad Henry, and follows, respects the Scott's ideals and morals as her Alpha, Malia fears a killer is all she ever will be, due who her biological parents being Peter Hale and the Desert Wolf.
Malia was 9 years old when she became a victim in a car crash in 2003. Her body was never found. Her family was found three days after their deaths still trapped in the car and seemingly mauled by coyotes.
She is still feral in many ways and considers the world the way a coyote would. She has no concept of friends and does not feel any moral compunction about leaving people behind in order to escape a dangerous situation. She is, however, particularly attached to Stiles and claims that she would never leave him.
Malia is quick to fight and handles pain well. She has difficulty focusing her hearing and other enhanced senses as a human.