Définition : (Bipedal jumping.) Behavior related to the upward thrust produced by the rapid, simultaneous extension of the hind legs with the intend to rise in the air
Définition : Description of the relationships among individuals within a population of organisms, including reproductive relationships (mating system), relationships within each sex, adult – young interactions, helpers and cooperation (group living).
Définition : where individuals of the same species (conspecifics), maintain spatial proximity with one another over time with mechanisms of social attraction
