Given the task definition and input, reply with output. You are given a sentence in Spanish. Your job is to translate the Spanish sentence into Farsi.

Los osos polares se mueven por el Océano Ártico en linea recta.

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
خرس های قطبی اقیانوس منجمد شمالی