The most striking feature about the Orks is their green skin. Combined with their green blood, Magos Biologis have come to the conclusion that, rather than a complete reliance on the consumption of nutrients in the form of food, Orks have a primitive and basic ability to photosynthesise. This would give them a tremendous advantage over other races as they can reduce their supply lines to ammunition and fuel and all the other parts of war, but without the need to transport perishable goods. The blood of an Ork is also interesting, in that it contains countless distinct fungal organisms and has a chlorophyll high content, with trace elements of carbon and copper. This would account for the green colour of the blood and shows that photosynthesis is an important part of the Ork structure.