Elodie Mandel-Briefer, Biologist, University of Copenhagen: We had this huge database of 7calls that are produced in specific emotions, specific contexts by many different peaks and kinds of peaks.
CNN Narrator: Scientists found short 8grunts typically signal positive emotions. Long grunts often indicate discomfort. Screams or 9squealscould show stress.
Elodie Mandel-Briefer: We developed AI, so artificial intelligence that could tell us, be trained to tell us if the calls that we recorded were emotionally positive or negative.
CNN Narrator: The study of animal emotions is a relatively new field. It 10highlights the importance of 11livestock's mental health to their 12overall well-being. Most welfare strategies today focus only on the animal's physical health.
Elodie Mandel-Briefer: And now with the 13explosions of AI methods, it actually becomes more and more easy to do these things.
CNN Narrator: Scientists hope this tool will be developed into an app for farmers' phones, helping to translate what pigs are saying in terms of their emotions.
