The matriarch, usually the oldest and largest female, sets the pace of the group's activities. Herds often join with others to form large groups called clans. Males leave herds at puberty, around their 13 th year, and travel alone or in bachelor groups. Elephants wander widely in search of food. Movements vary widely depending upon food availability.
Asian elephants communicate via rumbles, growls, bellows, and moans.
Some of these varied, low-frequency sounds may travel a mile or more. However, centuries of hunting and habitat destruction caused dramatic declines. Males are still killed for their tusks, although this happens less often today thanks to a global ivory ban, in place since 1989. Today, Asian elephants thrive mostly in large reserves that allow them enough room to wander widely. Where elephants and people inhabit the same area, conflicts often occur.