The Indominus Rex was going to be the latest attraction added to the park for higher profits. The hybrid was created by modifying the genome of a Tyrannosaurus rex with the DNA of various other theropods.

She hates humans and likes to eat them, believes she's the strongest dinosaur that ever lived. Was created not bred but was abused as a child. Hates Doc Wu aka her creator.

Ate her sister to free her from Doc Wu's abuse-

She might be Lesbian, who knows?