Heidi's New House

Heidi was a small, brown hermit crab. Shelived on a sandy beach near the ocean. SHe had a beautiful spotted shell. Like all hermit crabs, her shell was her home and she carried it around on her back. She loved her shell but it was getting too small and her parents told her that it was time to pick out a new one. Would she ever replace her shell or she'll stay with what she has?