Question: Do all crustaceans live in the ocean?, Answer:No, Description of Crustacean: subphylum of arthropods, Fact1: The woodlice family of crustaceans is terrestrial., Fact2: There are also many crustacean species living in fresh water rivers and lakes.
Step1: What are some common families of crustaceans?, Step2: Is there any of #1 that lives in a terrestrial habitat?, Step3: Do any of #1 that are aquatic also live in freshwater?, Step4: Are #2 and #3 negative?, Wikipedia page for step 1: Crustacean, Wikipedia page for step 2: Woodlouse, Wikipedia page for step 3: Crab, Wikipedia page for step 4: , not_definitive_answer: False, incorrect_answer: False