Tus dais polar filmed ze
Dais yog ib qho ntawm cov cim qub tshaj plaws ntawm kev ua niam vim lawv txoj kev hlub tshua rau lawv cov menyuam. Nws lub peev xwm sawv ntsug thiab taug kev thiab sib ntaus sib tua ncaj ncees rub kev sib piv rau tib neeg.
Polar bears nyob li cas?