站直身體、拿起工具／Standing upright with tools in hands

與其他以四肢並行的靈長類動物遠親們相比，以雙足直立步行的人類是十分獨特的物種。不需侷限於行走的雙手和靈活的大腦，讓人類得以製作出各式工具、迅速適應環境，進而孕育出複雜又豐富的文化。 Compared with other primates relatives that move on four limbs, humans that walk upright on two feet are a unique species. With a smart brain and dexterous hands that are no longer used to walk, human beings are able to make all kinds of tools, quickly adapt to the environment, and thus nurture complex and rich cultures.