1. shark   cangrejo   tortuga marina, carey   tiburón   erizo de mar   Hint Half-n-half Clue   2. seal   foca   estrella de mar   caracol   nutria   Half-n-half Clue   3. mussel   caracol   ballena   mejillón   erizo de mar   Half-n-half Clue   4. otter   medusa   nutria   tortuga marina, carey   ostra   Half-n-half Clue   5. manatee   manatí   pez espada   ballena   caracol   Half-n-half Clue   6. clam   cangrejo   nutria   delfín   almeja   Half-n-half Clue   7. oyster   pez espada   almeja   foca   ostra   Half-n-half Clue