Mo' Creatures Wolves are different from vanilla Wolves, as they only spawn during the night and are untamable. Similar to Rats, they won't attack at day unless provoked, but will attack you at low light levels.
They deal 1/2 a heart of damage, and drop 0-2 Fur upon death. Unlike other night-spawning mobs, they do not burn up during the daytime. They also hunt smaller animals, including ducks, chickens, and sheep. There are three variants of the wolf, a light grey, dark grey, and black.