What chickens can teach us about hierarchies
What is the record number of eggs laid by one chicken in a year? Is it:
A hierarchy (等级制度) is a way of organising people. For example, in a company, where there are people working at different levels.You've got bosses, managers and workers.
a group of chickens is a flock (群)
The average flock (普通chicken群) just gets better and better and better. Egg production increases dramatically. The super-flock of super-chickens (顶级chicken群), at the end of six generations, all but three are dead, because the other three have killed the rest. They've achieved their individual productivity (产量；生产率) by suppressing(镇压；压制) the productivity of the rest.
So chickens have an inbuilt (天生的；内在的) or, if you like,an inherited (遗传的) hierarchy - that's where we get the term pecking order (啄序，指鸡群中决定优势地位的程序，占优势地位的一只鸡可以去啄另一只地位较低的鸡；pecking order 还指任何团体中的长幼尊卑制度)from. But it's one that they create among themselves, rather than one that's imposed (把…强加于) upon them.
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