God used the element of faith to construct the earth and its inhabitants. Whatever he said, it came to pass, then dropped these elements in us to say whatever we want to also come to pass, but sin and disbelieve has murdered the faith in us and need to be ressurected by purity and strong will power.
How it is that animals understand things I do not know, but it is certain that they do understand. Perhaps there is a language which is not made of words and everything in the world understands it. Perhaps there is a soul hidden in everything and it can always speak, without even making a sound, to another soul.