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.
Porén, en dous millóns de anos o cerebro humano case triplicou a súa masa, pasando do cerebro de medio quilo que tiñan os nosos devanceiros, <i>Habilis</i>, a uns miolos de case quilo e medio que temos todos agora entre as orellas.