All beings directly from The Void consist of undefined black matter that can vary in levels of albedo to any source of light. The more reflective they are, the more sensitive they are to light and heat since their forms work to actively reject it. The less reflective, the more accepting or desensitized their forms are to light and heat's energy.
All void pieces are able to consume and process any kind of matter -- from bread, to plastic, to tar. Individuals may have preferences of taste and texture, but bread is commonly a favorite.
Spiral of Ants Amalgam Taurnado The World Revolving Sea of Tranquility