We are 98.4% chimp. Anyone telling you differently shouldn't be trusted.
This book gives a brief history of our evolution from the chimp to homo sapiens but really focuses on how our animal tendencies have negatively affected the world we live in & may bring about our own destruction. The author describes himself as "cautiously optimistic" as he is hoping our altruistic qualities lead our way to the future.
He has some interesting points & it is a good read for anyone interested.