This history of textile dyeing is well-documented (everyone wore clothing and everyone was looking for colorfast dye sources to color them with).
Natural dyes were very few and animal-derived dyes even fewer.
Nothing sea-dwelling other than Murex family and cuttlefish.
So, those who posit that ...
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- Tue Nov 29, 2022 12:22 am
- Forum: Science
- Topic: The probability of other creatures organically dying blue
- Replies: 32
- Views: 176071
