Interestingly L. Ron Hubbard was laughed at for saying tomatoes scream when [sliced](https://www.bostonglobe.com/ideas/2012/06/16/meet-your-vegetables/K9Q57mh3v

Interestingly L. Ron Hubbard was laughed at for saying tomatoes scream when [sliced](https://www.bostonglobe.com/ideas/2012/06/16/meet-your-vegetables/K9Q57mh3vuj5P2RvV6rUuK/story.html https://www.bostonglobe.com/ideas/2012/06/16/meet-your-veget...). I don't know enough about this to know how important it is or whether it's actually some kind of signalling.