简要：Andy works at a museum and uses a time machine to travel back to prehistoric times, collecting feathers, bones, feces, or anything needed for prehistoric exhibits for his museum. With the help of the things in his backpack, he managed to ensure his safety and returned to the museum.
Andy works at a museum and uses a time machine to travel back to prehistoric times, collecting feathers, bones, feces, or anything needed for prehistoric exhibits for his museum. With the help of the things in his backpack, he managed to ensure his safety and returned to the museum.展开
