Complex sentence: As a result of its role as a slow, peaceful creature in culture, the turtle can be misconceived as a sedentary animal; however, many types of turtle, especially sea turtles, frequently migrate over large distances in oceans.
Split into simpler sentences: As a result of its role as a slow, peaceful creature in culture, the turtle can be misconceived as a sedentary animal. However, many types of turtle, especially sea turtles, frequently migrate over large distances in oceans.