I remember when the Simpsons did Adam and Eve with Homer and Marge, Homer took some bacon from a live pig and the pig happily ran away afterwards alive ;DNephi said:I'm not sure if it's unnatural for animals. I've heard a few different opinions on this. Some talk about death occurring in the Garden before the Fall - as it would have had to for Adam and Eve to eat, even if they were only eating plants. Others say that only humans were created with the potential for immortality, and animals weren't.IoanC said:God does not destroy what He creates. Death is an unnatural occurrence both for us and animals. Since God is love that extends as far as possible, He will have to re-created the animals, as well, at His Second Coming. I've heard this view expressed in The Church, but I can't point you to any sources, except maybe Fr. Thomas Hopko, if you can find where he said this.
On a serious note, yes, I forgot where I read it, but that there is a contrast between angels and animals, and that humans are the combination of both. Angels being purely spiritual and intellectual beings, while animals are purely physical beings. So death might actually be a default property of the physical world. I have to look this up again, I am not explaining it very well.