Blood,
Collagen,
Complement,
Heparin,
Metals,
Plants,
Reproduction,
Scleroproteins,
Snails,
SNAKES 🐍,
Spider Aminosaurs,
Bad Food,
Bad Medicine,
Cattle,
Dyes,
Gold,
Metals,
Plants,
Seeing Red,
Serine/Threonine,
Silver Beaver,
Bugs,
CASSAVA,
Cattle,
Gold,
Metals,
Proteins,
Serine/Threonine,
Silk,
Silkworm,
Three consecutive AAs (chromophore formation),
Zinc
by 
