Elephant researchers have found evidence that elephants use unique rumbling calls to address specific individuals, similar to human names, writes Mickey Pardo for The Conversation Africa. Biologists in the study, published in Nature Ecology & Evolution, used machine learning to detect naming in a sound library from Kenya’s Samburu National Reserve and Amboseli National Park. The researchers also followed elephants in jeeps to look for calls and responses. The elephants vocalized and approached the source of the sound more readily when the call was originally addressed to them.