Two skulls found last week by a 12-year-old boy in rural Bull Valley are real human skulls used as anatomical models, according to McHenry County authorities.
A forensic anthropologist said Monday the skulls were prepared for an educational or display setting.
Bull Valley resident Leanne See-Garcia's son, Tarren, was waiting for the school bus at about 7:50 a.m. last Tuesday when he found the skull near the family's mailbox at 1500 Cherry Valley Lane.
Bull Valley Police officials were contacted, and during a search of the Garcias' yard, police found a second skull by some pine trees near the property line. Police concluded residents shouldn't be alarmed.
McHenry County Coroner Marlene Lantz told the Chicago Tribune the skulls appeared bleached by the elements but were light from being prepared for display.