海滩上蓝甲蟹分为两种,一种是较凶猛的,不知躲避危险,跟谁都敢开战;一种是温和的,不善抵抗,遇有敌人,便翻过身子,四脚朝天,任你怎么叼它,踩它,它都不理不动,一味装死。经过千百年的演变,出现了一种有趣的现象,强悍凶猛的蓝甲蟹越来越少,成为了濒危动物。而较弱的蓝甲蟹,反而繁衍昌盛,遍布世界许多海滩。 The beach is divided into two kinds of blue crabs, one is more ferocious, I do not know to avoid danger, with whom no one dared to war; one is mild, not good resistance, in the case of the enemy, then turned over, How do you Diao it, step on it, it is indifferent, blindly loaded dead. After thousands of years of evolution, there has been an interesting phenomenon that less and less powerful and ferocious blue crabs become endangered animals. The weaker blue crabs, on the other hand, thrive on many beaches all over the world.