Background Blitz day 7!! I’m coming in 4 hours late but I’M FREE! I’M FREEEE

Scuds use a variety of calcium carbonate shell materials to build housing. Crushed shell cements utilize small shelled animals, while enormous shelled “clams“ and “barnacles“ are cultivated for meat and “lumber,” made by strategically cracking the shell into geometric pieces. This lumber is usually held together by resin and dowels, as shell is too brittle to be nailed together like wood. A more recent building technique uses bioengineered coral to coat scaffolding arranged in the desired shape.