人们曾经认为，蚂蚁培育的真菌是它们繁殖的一种单一品种，自远古时期以来基本上没有改变。
It was once thought that the fungus that ants cultivate was a single type that they had propagated, essentially unchanged from the distant past.
早在远古时期，人们就通过原始而简单的声音、肢体语言、符号等方式交流信息。
As early as in ancient times, people on the adoption of primitive and simple voice, body language, symbols such as the exchange of information.
在远古时期，人们用石头来制造工具。
应用推荐