And yet, in two million years, the human brain has nearly tripled in mass, going from the one-and-a-quarter-pound brain of our ancestor here, Habilis, to the almost three-pound meatloaf everybody here has between their ears.
dari satu seperempat pon milik nenek moyang kita yang ini, Habilis, ke hampir tiga perempat organ yang semua orang di sini punya di antara kedua telinga mereka.