You might expect that neighboring neurons would be closely related to one another, or that entire regions would arise from the same ancestral cells. But that’s not the case. Christopher Walsh from Boston Children’s Hospital has now shown that in one region, the prefrontal cortex, any given neuron is more closely related to cells from the heart than it is to three-quarters of its immediate neighbors.

Source: Why Each Of Your Neurons Is A Beautiful And Unique Snowflake – The Atlantic