We study the injustices of history for the same reason that we study genocide, and for the same reason that psychologists study the minds of murderer….

Throughout history, adultery has had few rivals as a cause of murder and human misery. The reason we tend to resemble our mates is that many of us ar….

Measles and TB evolved from diseases of our cattle, influenza from a disease of pigs, and smallpox possibly from a disease of camels. The Americas ha….

Biology is the science. Evolution is the concept that makes biology unique..

Bird taxonomy is a difficult field because of the severe anatomical constraints imposed by flight. There are only so many ways to design a bird capab….

The past was still a Golden Age, of ignorance, while the present is an Iron Age of willful bliss..

One person making a wrong decision affects the whole country..

Our biggest threat is not an asteroid about to crash into us, something we can do nothing about. Instead, all the major threats facing us today are p….

In fact, everywhere in the world there has been a flux between big and small societies. Big political units are constantly being formed, later to fra….

Eurasia's main axis is east/west, whereas the main axis of the Americas is north/south. Eurasia's east/west axis meant that species domesticated in o….

Although native Africans domesticated some plants in the Sahel and in Ethiopia and in tropical West Africa, they acquired valuable domestic animals o….

The King's 28 letters have been described by scholars as the world's best alphabet and the most scientific system of writing..

Federal elections happen every two years in this country. Presidential elections every four years. And four years just isn't long enough to dismantle….

The single most important problem is our misguided focus on identifying the single most important problem!.

In the latter case it is often government that organizes the conquest, and religion that justifies it..

To dismiss the current extinction wave on the grounds that extinctions are normal events is like ignoring a genocidal massacre on the grounds that ev….

Native Americans had only stone and wooden weapons and no animals that could be ridden. Those military advantages repeatedly enabled troops of a few ….

Livestock adopted in Africa were Eurasian species that came in from the north. Africa's long axis, like that of the Americas, is north/south rather t….

I personally am not conscious of my accent..

History followed different courses for different peoples because of differences among peoples' environments, not because of biological differences am….

Infectious diseases introduced with Europeans, like smallpox and measles, spread from one Indian tribe to another, far in advance of Europeans themse….