From the Book - First Pegasus Books cloth edition.
Prologue: Where we are going - and why
We are all African : the birthplace of humankind
From here to there and back again : a mostly coastal route out of Africa - across the world?
How do we know what we think we know? : the science behind the "facts"
Variety is the spice of life : where we are affects what we are
Gene maps and the roads less traveled : barriers to movement maintain diversity
Is man merely a monkey? : human cultural diversity varies across the globe in the same way and for the same reasons as biological diversity
Islands are special : size and metabolism in a small environment
We are what we eat : our diet affects our genes, and different regions eat different foods
What doesn't kill us halts or moves us : other species influence where we can live
Mad, bad, and dangerous to know : we are bad for many species, even if we help a few
Conquest and cooperation : humans are bad for each other, even if we occasionally help one another
Epilogue: Are we going to last the distance?.
