Excessive aerophagia, commonly occurring during habitual cribbing in horses, can lead to serious digestive problems and is considered a dangerous vice. Definition from Hurnik et al., 1995. Definition from Hurnik et al., 1995. The placenta and placental membranes expelled from the uterus following parturition. Definition from Hurnik et al., 1995.
Aggregation is distinguished from grouping induced by social factors.
Compare Flocking, Herding A00616. Definition from Hurnik et al., 1995. In special cases, a nonliving object or the instigator itself may be the focus of the aggressive action. Definition from Hurnik et al., 1995. Definition from Hurnik et al., 1995.