White Wolfos

The White Wolfos (ホワイトウルフォス, Howaito Urufosu) appears in Ocarina of Time, Majora's Mask and Twilight Princess. It is a white wolf-like creature, and a cousin of the Wolfos.

Ocarina of Time
In Ocarina of Time they were large white anthropomorphic wolf-like creatures. They were larger than standard Wolfos but almost, if not completely, the same in strength. Like their cousins, a White Wolfos would circle around Link, then close in and attack with its sharp claws. They would often block or dodge Link's attacks, making them relatively formidable foes. To defeat one, Link had to attack when it let it's guard down; the best time was typically when they were trying to attack Link. They had a major weak spot: its tail. If their tail was attacked, it would result in instant death. If one of their attacks was dodged, they often exposed their tail, making it possible to exploit this weakness. They were quite rare, appearing only in the Ice Cavern as a sub-boss, in the Gerudo Training Ground, and in a certain hidden cavern. There were somewhat more of them in Master Quest, including several in the Ice Cavern.

Majora's Mask
In Majora's Mask they were the same size as normal Wolfos, but other than that, they were identical to their Ocarina of Time counterparts. White Wolfos appeared in Snowhead and its surrounding areas. Once Link had defeated Goht, they would disappear along with the snow, and regular Wolfos would take their place (until Link would go back in time using the Song of Time). The only real diference is that the White wolfos in Majora's Mask will reappear when you leave the area.

Twilight Princess
White Wolfos in Twilight Princess have a more realistic wolf-like appearance with a strange, ghostly sort of glow. They have the ability to dive in and out of snow as if it were water, enabling them to disappear at will and to launch surprise attacks. They also move more quickly than the White Wolfos found in Ocarina of Time and Majora's Mask. Unlike the Wolfos in previous games, they do not stand on their hind legs to attack, instead remaining always on all fours and attacking by leaping towards their opponent (in a manner more typical of an actual wolf). They typically attack in pairs or groups. They appear in large packs in Snowpeak on the way to the mountain cave, ceaselessly attacking Link on the long hike, as well as in the Snowpeak Ruins. These White Wolfos can be killed easily using standard attacks.