In Xochimilco, the remains of a three-to-four-year-old boy were found. The skull was broken and the bones had an orange/yellowish cast, a vitreous texture, and porous and compacted tissue. Aztecs have been known to boil down remains of some sacrificed victims to remove the flesh and place the skull in the tzompantli. Archaeologists concluded that the skull was boiled and that it cracked due to the ebullition of the brain mass. Photographs of the skull have been published in specialized journals.