Actually, they have been using Protein Residue Analysis to isolate blood (and a lot of other ancient proteins) for over 15 years now.
The Britts have been making blood pudding for generations. One shouldn’t waste a food source to make paint. ‘Tis nearly as foolish as using corn to fuel a car.
/s
“KEYWORDS: aids; ancient; blood; hiv; mali; sculptures”
Some of your keywords are stupid. Flat out stupid.
A friend of mine is fond of a type of wine from South Africa and on the bottle they warn that blood is used to purify, and I understand that is not uncommon. The blood takes out the impuritites. Cow blood I think. Gross.