Cuttlefish
Cuttlefish comprise an order of marine mollusks. Extremely intelligent, though short-lived, cuttlefish can change color and texture to hide from predators or communicate with each other. Their unique internal shell allowed them to survive ocean acidification and, along with squid and octopi, flourish in the oceans of the Fifth World.
#Human usage
People in coastal areas hunt cuttlefish for meat. They often save the creature's ink sac and incorporate the brown ink into sauces. They also use the brown ink in art, makeup, and as a clothing dye.
#Specialization
A community that specializes in relation with cuttlefish will invariably live on or by the sea and subsist primarily on seafood. They will likely respect cuttlefish for their cleverness and shape-changing, perhaps even telling stories about cuttlefish trickster figures. They may incorporate lots of brown ink in their art and clothing, in honor of this creature.