What is Eckels thankful for in A Sound of Thunder?

In Ray Bradbury's "A Sound of Thunder," Eckels is ultimately thankful for being alive after his time-traveling adventure goes awry. Initially, he is excited about the chance to hunt a dinosaur, but after accidentally disrupting the past, he realizes the profound consequences of his actions. By the end, he expresses gratitude for the opportunity to return to his own time, albeit with a new understanding of the fragility of life and the impact of seemingly small actions.