An aswang is a mythical creature in Filipino folklore. The legend of the aswang is well known throughout the Philippines, except in the IIocos region. The creature is described as a combination of vampire and witch and is almost always female. The aswang is an eater of the dead and a cannibal. They are capable of transforming into either a huge black dog or a black boar. The creatures stalk and eat human beings at night. Garlic bulbs, holy water, and other objects are believed to repel aswang. Many stories revolve around these creatures eating children and unborn fetuses. In human form they appear normal, and are quiet, shy, and elusive. At night, they transform into the deadly beast. One key feature of the aswang is its bloodshot eyes. In the Middle Ages, the aswang was the most feared among the mythical creatures in the Philippines.