DNA seems impossible, but it is possible if there is a skull. Because there is a certain proportional relationship between the size of human muscle and bone, professionals can calculate the shape and size of muscle tissue attached to it by measuring the data of various places on the bone, referring to race and age (judging from tooth wear), roughly restore it through molds and plasticine, and then restore its appearance through computer post-processing.

Of course, such technical errors are relatively large ... For example, after my skull is dug out, I may not be able to recover the above-average fat layer on my face ... Hehe.

Nothing, just look at the discovery of CCTV 10 or CCTV9. Archaeological techniques in this field are often introduced.

I hope I can help you ~