Tell us about the arowanaâaka the dragon fishâand why it has become so valuable. The Asian arowana is the worldâs most expensive aquarium fish. It is a tropical freshwater fish from Southeast Asia that grows three feet long in the wild. Thatâs roughly the size of a snowshoe. [Laughs.] It is a fierce predator dating back to the age of the dinosaurs.
A personality disorder is an enduring pattern of inner experience and behavior that deviates markedly from the expectations of the individual's culture, is pervasive and inflexible, has an onset in adolescence or early adulthood, is stable over time and leads to distress or impairment.
Abnormal psychology concerns with abnormality in human mind, behavior and mental processes. Abnormal psychology is a specialized branch of the broader field of psychology and is concerned with abnormality of behavior. Abnormality, in simple words, can be defined as incongruence with one's norms. Abnormality may be said to have four Ds; danger, distress, deviance and dysfunction. For example: