Wendigo is a Native American spirit originating from the Algonquian mythologies. The wendigo is a malevolent spirit which influence humans to commit acts of murder and cannibalization.
Usually wendigos are said to possess people who in desperation turns to cannibalism to survive. When possessed an individual is often said to turn to beast slowly over time reflecting the wilderness of consuming the flesh of their own.
There are cases when the wendigo is described more as a creature. In indigenous representations they were usually depicted as a giant humanoid with a heart of ice. A foul stench and/ or an unseasonable chill may precede its approach.
When these giants ate people they are said to grow in proportion to the person they ate.
Currently they are commonly depicted with antlers and hooves however the original depictions lacked this.