Why are Animals in my flowers?

Moles feed on earthworms. They are present because they are looking for earthworms (and other soil insects) to feed on. If you don't want to kill them, you can repel them with castor bean oil products available from garden centers and nurseries.

For rabbits and chipmunks several types of spray based repellents can be effective. Liquid Fence and Messina Wildlife Stopper are two brands that work pretty well.