People often use "samburu" to decorate European aristocrats, and "Lamburu" originated from the Spanish royal family. The ancient Spaniards believed that blue blood flowed in the nobility. At that time, the aristocrats in ancient Castile claimed that their blood was the noblest and purest. Nobles often proudly roll up their sleeves, revealing the blue veins on their white arms, which are called blue blood. This is very different from Moore with dark skin. Because they are not engaged in manual labor, their skin is as white as snow, which shows the fundamental difference between nobles and "laborers". In fact, the real cause of "blue blood" is also closely related to the living habits of nobles, such as silverware. European nobles like to use all kinds of silverware, tableware, water containers, toilet utensils, religious ceremonies and so on. , to a certain extent, caused the "silver poisoning" of these people. Such a person's skin is very white and delicate, which makes veins and blood vessels faintly visible and looks like blue blood. Later, westerners used blue blood to refer to those noble and intelligent elites! Octopus's blood is blue.

Scorpions, spiders, mussels and octopus squid have no hemoglobin in their blood, but contain copper hemocyanin, so their blood is blue.

So there is such an inference: because the blood of nobles is blue, and because the blood of octopus is blue, octopus is generally noble. Ha ha.