"The Creatures That Time Forgot" by Ray Bradbury is a short story first published in 1946. The tale follows Sim and other humans stranded on a harsh planet where radiation limits their lifespan to just eight days. Within sight sits a distant rocket ship that could offer escape, but the deadly journey seems impossible to complete. Gifted with ancestral memories yet trapped by time, Sim pursues a desperate plan to extend life and reach salvation before his days run out.