There was a post here on HN a few months back about a group of scientists that did exactly that to whale recordings, and actually found some surprising patterns

There was a post here on HN a few months back about a group of scientists that did exactly that to whale recordings, and actually found some surprising patterns emerge. edit: I think this is the one I was thinking of: https://news.ycombinator.com/item?id=26874309 https://news.ycombinator.com/item?id=26874309