P70 The Primates 灵长类动物

从公元1934年往前993,419年是最早人类诞生。他们有完美手脚，12岁成熟，有多种情感，还创符号语言，最终建立人类。 From 1934 AD, 993,419 years ago were the birth of the first humans. They had perfect hands and feet, matured at 12, had various emotions, created symbol language and founded the human race.