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.
nuo 0.57 kilogramo svorio smegenų šio mūsų protėvio, Habilis, iki beveik pusantro kilogramo mėsos gabalo, kurį kiekvienas mūsų turi tarp savo ausų.