Elephants appear to have individual names encoded in their calls, responding only when their own name is spoken—suggesting a sophistication of social communication previously thought unique to humans and a few other species.
Wild African elephants appear to call each other by individual names, after researchers who recorded hundreds of rumbling calls in Kenya found that when a recording was played back through a speaker, the elephant it was “addressed” to perked up and answered — while others standing nearby ignored it
Brendan Brown