What is the resolution of story sound thunder?

The resolution of the short story "Sound of Thunder" by Ray Bradbury is that the main character, Eckels, realizes the seriousness of his actions in changing the past and accidentally killing a butterfly during his hunting trip. He returns to the present to find that everything has changed and that he is no longer the same person. The story ends with Eckels being hunted by the same dinosaurs he was pursuing earlier, emphasizing the unpredictable nature of time travel and the interconnectedness of all life.