Thanks so much, I shall definitely check out the original report. 👌👌👍
No, In my other worlds, when I turn it to peaceful more animals spawn. Peaceful is to remove all "mobs" as in all monsters. Even when my world is not on peaceful, there are still no animals.
This has happened to me also. Looked weird, so I reported it. Until now I saw that 11 people reported this one problem including me....