Maternal beliefs about children's social behavior may be important contributors to socialization and development, but little is known about how such beliefs form. Transactional models suggest that children's characteristics may influence parents. At 2 years of age, the shy and aggressive behaviors of 65 toddlers (28 females) were observed during interactions with an unfamiliar peer; as well, mo...

. 3 Conspecific groupings and aggression. Hornbills in the wild perform many bill maintenance behaviors such as cleaning food residue from.Abyssinian Ground Hornbills, 151. See also aggressive behavior behavioral disorders sexual.Rhinoceros Hornbill. Defensive Aggressive behavior: Their long bill is used for defense against enemies. Either as aggression, social interaction, pair bonding, or pla...

Peer contagion of adolescent males' aggressive/health risk behaviors was examined using a computerized "chat room" experimental paradigm. Forty-three 11th-grade White adolescents (16-17 years old) were led to believe that they were interacting with other students (i.e., "e-confederates"), who endorsed aggressive/health risk behaviors and whose ostensible peer status was experimentally manipulat...