Half-orc
The half-orcs are originally progeny of human and orc procreation, though half-orcs can mate with either species and create half-orc children. Half-orcs occupy the fringe of society. Although orcs are recognized as a civilized race under the Galifar Code of Justice, they are none-the-less looked down upon by the more civilized races and half-orcs inherit enough of their savagery to discomfort many by their sheer presence, while the human ancestry in them craves social structure and comforts. Half-orcs are fairly rare in Eberron, though the half-orcs of House Tharashk in the Shadow Marches have developed a society of their own fueled by their knack for tracking things down, most notably dragonshards.