Naturally born hybrids or awakened

Naturally born beings with yoki in their body. Have similar characteristics to their Claymore and Awakened counterparts. The only ones which have appeared have been female and had bodily disorders and have extra organs. Male naturally born hybrids/awakeneds exist but appear to have difficulty assuming human forms, as seen by numerous male beings in their infantile stages kept in jars in the Retrieval Squad and/or are ruled purely by their instincts, similar to how male Claymores have much more trouble controlling their yoki than female ones. Any naturally born hybrid is unable to awaken and has no defining stigma, possessing only unusual bodies and silver eyes. Blood spawn aren't sterile while naturally born hybrids are. All naturally born hybrids or awakened are angels.

Unlike naturally born hybrids, which may have no Y.I.D., naturally born awakened have two Y.I.D., one plant, one animal.

Naturally born awakened are fertile like their mothers, and are sometimes can be considered the equivalents of colorheads as they possess a plant Y.I.D.

The Organization appears to have delved into naturally born hybrids. Called Slver Nephilim or the Silver Reserves, the Organization's naturally born hybrids are kept in the Heaven facility in Mucha for use as a backup force for the current generation of warriors.

Every hybrid has at least one set of bony protrusions somewhere in their body, named "horns" by the Silver reserves, which grow when the hybrid reaches the age of 5 or 6.

For a list of naturally born hybrids/awakends see here