> Elephants frequently come into contact with two local tribes in Amboseli National Park: the Kamba, an agricultural group that poses little threat, and the Maasai, who frequently clash with elephants over land and water thanks to their nomadic herding lifestyle.
An earlier study showed that elephants here can discriminate between the clothes worn by these two groups via color and scent, but a new paper in PNAS finds that they are capable of even more subtlety when it comes to auditory information. Elephants can distinguish between different subgroups of humans based on vocal cues, using th…