A king penguin pulls the strap of a visitors camera during a walk on a road covered with snow as visitors watch at the Asahiyama Zoo in Asahikawa city, Japan's northern island of Hokkaido on February 3, 2012. Penguins take a stroll everyday to exercise before visitors during the winter season. — AFP Photo

King penguins walk on a road covered with snow as visitors watch at the Asahiyama Zoo in Asahikawa city, Japan's northern island of Hokkaido on February 3, 2012. Penguins take a stroll everyday to exercise before visitors during the winter season. — AFP Photo

King penguins walk on a road covered with snow as visitors watch at the Asahiyama Zoo in Asahikawa city, Japan's northern island of Hokkaido on February 3, 2012. Penguins take a stroll everyday to exercise before visitors during the winter season. — AFP Photo

King penguins walk on a road covered with snow as visitors watch at the Asahiyama Zoo in Asahikawa city, Japan's northern island of Hokkaido on February 3, 2012. Penguins take a stroll everyday to exercise before visitors during the winter season. — AFP Photo

King penguins walk on a road covered with snow as visitors watch at the Asahiyama Zoo in Asahikawa city, Japan's northern island of Hokkaido on February 3, 2012. Penguins take a stroll everyday to exercise before visitors during the winter season. — AFP Photo