In the short story, the sound of thunder, the author is clearing saying something very important. It is about a man who travels back in time with a company called Time Safari Inc. to hunt dinosaurs. They are told not to do anything that will alter the past because it could change the future.
If a single animal dies, it won’t have any babies which means that the whole generation of that animal is doomed. Same thing in this story. One of the hunters steps on a butterfly that lives back then, which means the current butterfly that is related the to dead one also dies. The entire generation of those butterflies also dies. If they leave a bullet, cave men might discover it. Thus, the gun might be invented early. Cave paintings would show modern weapons instead of bows and arrows. If they kill the dinosaur early on, entire fossils can change. exhibit in museums could have changed. What if they killed Sue the famed T-rex, the museum would have a tiny little dinosaur or they could have never found it. The theme is, if you do something small, it could have a big impact.
Therefore, this is why I think the theme of the short story is little things make big differences.
