Rigorous endurance exercise across generations could have been
responsible for the success of humans as a species, says a
recent scientific study. Our most notable physical trait as
humans is our large brains. We are distinctly abnormal in the
animal world, with brains about three times the size predicted
by the size of the human body. Aside from requiring larger hats,
larger brains usually spell success for animals. How did we
develop large brains? Science says that aerobic exercise may
have contributed.   brain size, evolution brain size, protein
brain size, running brain sizeThe study examined the athletic
prowess and brain size of many different mammals from gazelles
to mice to humans. The primary measures examined were maximum
metabolic rate and VO2 max. Researchers found that the longer
and harder the animal could run, the larger its brain. The
correlation was very significant, meaning there is definitely
some interplay between exercise and brain size - at least in
non-human animals.   But when they thr