Polar bears and dogs playing

http://www.youtube.com/watch?v=JE-Nyt4Bmi8&feature=channel_page
(id be a bit scared if i was the small white dog)
http://www.youtube.com/watch?v=1tXtBpfR69E
http://www.youtube.com/watch?v=gMle_-3Cis0&NR=1