Beast Boy's instincts were good. Although everyone else went through years of tireless training to to hone their instincts Beast Boy never needed to. His instincts came from the animals inside him. They were all a part of him, a part of his innate intelligence, that nobody could really ever comprehend. When he changed into a different form it was natural to feel that animal's core and be overcome with those survival skills. Likewise his animal's skills were melded into his normal form aiding him to threats in his environment.
One of his biggest threats to his survival was Raven. From the first moment about her Beast Boy had the sense that there was something dangerous about her, even though all the superheros were a bit dangerous, Raven was the only one to ever make the hair on the back on his neck stand up. At first he shrugs the primitive cues off as nothing. However, when their time together progresses Beast Boy becomes more wary. And no it isn't just because he pulls pranks on her that could potentially put him into her wrath. But, because something dark lurks deeper within Raven he notices himself at first shying from her and then overcompensating by annoying her to press her reactions. He wants to know what's buried so deep down in the dark crevice of her soul that makes his animals on guard.
When he finally finds out what her other side is he can't help but feel as if he has known all along. Afterall his senses did call her a wicked demon and he really had no clue they could be right. As he is faced with the blood red eyes and a deep growl he stiffens and knows. He catches her sent. sometimes after a particular battle where she has used a lot of energy or when she is so riled up and steaming from his latest annoyance, he realizes smells intimidating. There is something about her smell that makes part of his weaker animals cower in fear because she is a unnatural predator. She is the fire his animals run from, the dark in which they dislike, and the fear they hide from. Though his animals shrink from her Beast Boy has come to trust his rocky friendship with the half demon. She is his friend and whether his animals still shrink when she glares he won't give up on this.
