Vast, flat areas of the deep ocean floor, usually found at depths between 3,000 and 6,000 meters.
A substance with a low pH level
The benefit or advantage that a trait provides to an organism in its environment
A gigantic tentacled monster from Ainu folklore
Growth where different body parts or structures grow at different rates.
Ammonia is a compound that is incorporated into shell formation in terrestrial molluscs and other non-molluscan lineages. It is produced as waste in large amounts by cephalopods due to their consumption of protein.
An extinct group of shelled cephalopods.
Ammonium chloride is a compound used by cephalopods to store ammonium ions. It helps reduce their overall density and increase buoyancy.