Besides their form, the Metal people also have many unconventional attributes.
For example, Metal people did not evolve to have noses because they do not need to breathe air, which is essential for humans but is actually toxic to them.
Because inhaling oxygen oxidizes the Metal Elements in their bodies, leading to deterioration of metal molecules, and thus affecting their health, Metal people have evolved a thin layer of Platinum Rhodium Alloy Skin on their surfaces during evolution to avoid the effects of oxygen or other gases. This Alloy Skin possesses superior anti-oxidation and acid corrosion resistance, which is one of the key factors enabling Metal people to survive.
Since Metal people are made up entirely of Metal Elements, their food primarily consists of metals.
