Individual wild wolves can be recognised by just their howls with 100% accuracy, a study has shown.
The team from Nottingham Trent University, UK, developed a computer program to analyse the vocal signatures of eastern grey wolves.
Wolves roam huge home ranges, making it difficult for conservationists to track them visually.
But the technology could provide a way for experts to monitor individual wolves by sound alone.
"Wolves howl a lot in the wild," said PhD student Holly Root-Gutteridge, who led the research.
"Now we can be sure… exactly which wolf it is that’s howling." (via BBC Nature - Wolf howl identification technology excites experts)