Fulani nomads herd their Zebu cattle on foot, keeping the pace set twelve thousand years ago, when a man first took a cow to graze and committed to life on the hoof. Two thousand footsteps per mile. Seven to fifteen million footsteps a year in the African savannah, faithfully hugging ancient routes hewn over millennia, with minor deviations to account for crops, droughts, borders, wars, charting the story of our humanness within sequences of holding on and letting go. Every footfall is an umbilicus that connects the Fulani to the very first cowboys, reminds them of who they are on Earth. To herd cows with them is to join a walk that spans a history, to learn from movement as old as Abel.