Archaeologists discovered ancient human skeletal remains.
Tips
usage
骸 rarely appears alone in modern Chinese. It is most commonly seen in the compound 骸骨 (skeleton/remains) or the literary phrase 形骸 (physical body/carnal form).
Bone radical on the left, the indexing component. It pictures a skull-and-spine joint above a slab of meat below, and groups 骸 with the skeletal family: 骷 skull, 髅 skull, 髓 marrow, 骼 bones. Anywhere 骨 sits on the left, expect anatomy.
Right side 亥 hài supplies the sound with a small tone shift hài → hái. The same phonetic powers a tight family: 孩 child, 该 ought, 咳 cough, 核 kernel, 刻 carve — recognising 亥 here is the fastest way to lock in the hái reading.