“Different is threatening to most species,” Nikanj answered. “Different is dangerous. It might kill you. That was true to your animal ancestors and your nearest animal relatives. And it’s true for you.” Nikanj smoothed its head tentacles. “It’s safer for your people to overcome the feeling on an individual basis than as members of a large group. That’s why we’ve handled this the way we have.”
―
Octavia E. Butler,
Dawn