Although the rise of parent organizations and the destigmatization of childhood ASD have deeply affected how we view ASD, parents continue to feel social stigma in situations where their autistic children's behaviors are perceived negatively by others, and many primary care physicians and medical specialists still express some beliefs consistent with outdated autism research.
Anxiety may stem from preoccupation over possible violations of routines and rituals, from being placed in a situation without a clear schedule or expectations, or from concern with failing in social encounters; the resulting stress may manifest as inattention, withdrawal, reliance on obsessions, hyperactivity, or aggressive or oppositional behavior.
Exposure of American White Ibises to methylmercury causes reduced foraging efficiency and it also makes them more likely to abandon nests owing to the disruptive effect of the pollutant on the bird’s hormone systems, which in turn affects parental care behavior.
It is possible that this represents brooding or nesting behavior in Deinonychus similar to that seen in the related troodontids and oviraptorids, or that the egg was in fact inside the oviduct when the animal died.
Martijn Icks in Images of Elagabalus (2008; republished as The Crimes of Elagabalus in 2012) cites the unreliability of the ancient sources and concludes that it was the emperor's unorthodox religious policies rather than his sexual behavior that so alienated the power elite of Rome that his grandmother saw fit to eliminate him and replace him with his cousin.