Tiny genetic changes leave big impact on brain evolution

Changes to just three genetic “letters” among billions is said to have contributed to the evolution and development of mammalian motor sensory circuits and laid the groundwork for the defining characteristics of the human brain.

The identified DNA region E4 specifically drives the development of the corticospinal system is conserved in all mammals suggesting that it is important to both the emergence and survival of mammalian species.

Read more at Yale University