Response to Blog- menaing of life for animals

This is response to Becky's post in which she asks the question, what is the meaning of life for animals. Well not to sound corny, but I believe that we are all apart of the circle of life. Animals are born, they grow and use their enviroment, they reproduce, then after a full life they return to the enviroment. In my future of food class, we looked at the cow and how it is a cycle of how it aids the enviroment. The sun contributes to the grass growing through the process of photosynthesis, the cow eats the grass, the cow fertilizes the grass with it's manure, which combines with the sun to grow the grass, which feeds the ow, etc. Animals contribute to the balance of the ecosystem, but I don't think that they know that themselves. I think they just do what they are naturally inclined to do. They hunt when they are hungry,reproduce when it is time, they graze, and they just exist in this symbiotic relationship with the environment and other animals. I don't think they are aware that they are doing what they are doing. They don't know that without their everyday function the earth would be in chaos. It is like us humans, we go on our daily tasks doing what we have to do,  not knowing that in some way or the other we saved someones life or contributed in some special way to the environment. So though animals are not aware that they are here to keep a particular balance, serve as food, or help the ecosystem, they do. With this said my question is, what would the world look like if everyone decided to be a vegetarian?