Elephants use specific sounds to identify each other and respond to recordings of their names.
. Unlike a few other animals — like dolphins and parrots — that respond to others imitating their signature call, an elephant’s name is its own separate word.
“Are these elephants rude so that they are not answering?” says Poole. “Or are they directing the call to one particular elephant?” To learn elephants’ names, Kurt Fristrup, a research scientist in CSU, developed a signal processing technique that detects subtle differences in elephants’ call structures. Then Fristrup and Pardo, a CSU research fellow, trained a machine-learning model to correctly identify which elephant the call was addressed to based on sound patterns.
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