Applying Ecological Approach in A Sound of Thunder by Ray Bradbury By Mia Fitria Agustina A lecturer in Jenderal Soedirman University mia.fitria.agustina@gmail.com Abstract Nowadays, as the earth is getting old, there are problems needed to be solved. Hence, through literary works, the issues of the earth may be sounded and heard by so many readers. A Sound of Thunder by Ray Bradbury is one of literary works that has main issue on environment. Through its depiction about time machine that can take the travelers get back to the previous era, the short story lead the readers to think the essential part of each God‟s creation. It is mentioned in the story that even a single mouse takes a part in the future of the earth. Therefore, it is challenging to figure out how this issue is cover in the story. Finally, the paper is going to discuss the important of each creature in maintaining the balance of the life cycle using ecological approach. Keywords: A Sound of Thunder, ecological approach, and life cycle Introduction Every single living thing is created by God with spesific purposes. This statement is true 100%. Nobody cannot deny that statement. Everbody agrees with the statement, and noone cannot argue that the statement is wrong. Even creatures which we think have no use take a part in creating harmonious life. Ecosystems need creatures to maintain the balance of them. In ecosystems, there are lots of different living organisms that interact with each other. The living organisms in an ecosystem can be divided into three categories, namely, producers, consumers and decomposers. Producers are the green plants. They make their own food. Consumers are animals and they get their energy from the producers or from organisms that eat producers. There are three types of consumers, such as, herbivores carnivores, and omnivores. Herbivores are animals that eat plants, carnivores are animals that eat herbivores and sometimes other carnivores and omnivores are animals that eat plants and other animals. The third type of living organism in an ecosystem is the decomposers. Decomposers are plants and animals that break