Title: why is a Shell a good home? Shell’s can give sea creature’s defence against predators a shell is a good home? Because it gives protection against waves and it is cozy and it doesn’t have to get out of its home to get food and it gives protection against predators. i -t is a good home but crabs outgrow there Shells they leave there shell to find another. A crab keeps growing and growing and growing so it has to find new ones that fits it size. Shells can be a good home for many sea life but star -fish can break shells but overall shells are a good home but not against starfish.