The researchers then identified specific rumbling sounds for 119 individuals by distinguishing between female elephant group members and their offspring that were separated from their herd at the time each vocalization was made or approached when the call was performed. Using a computer model, the researchers correctly identified the recipients of 20.3% of the 625 recorded calls.

Sure! Here’s the translation while preserving the HTML tags: "Indeed, calls from different individuals to the same recipient show similarities, although the pattern may be less defined compared to calls between different individuals. Researchers note that this may occur because the sounds produced by elephants contain multiple messages at once, making it difficult for computer models to choose the "name" used in each call."