Emma the Curious 🧐 on Nostr: Reaching lengths of up to four feet, Pinna nobilis is the largest clam in the ...

Reaching lengths of up to four feet, Pinna nobilis is the largest clam in the Mediterranean Sea. These giant, endemic mollusks anchor themselves to the seafloor with long adhesive fibers — byssus, also known as sea silk.

Many mollusks produce byssus, but only the P. nobilis’s has been collected, treated, and spun into magnificent golden thread – bisso – since antiquity.

https://hiddencompass.net/story/preserving-an-ancient-thread/