"Think of genes as players in an orchestra, with different sections responsible for different traits. Not only do all the individual players have to be in sync, but so do the sections. Just as the percussion section might have trouble getting its rhythm together, the genes that underlie a particular trait might be activated later than the genes for other traits that contribute to an ability. So one trait, like gregariousness, can develop early on while another trait, like speech production, may lag�which can be awkward until the two come into harmony."
I will be thinking about this all day!
Thank you for posting
