In The Latter Case It Is Often

Infectious Diseases Introduced With Europeans, Like Smallpox And Measles, Spread From One Indian Tribe To Another, Far In Advance Of Europeans Themselves, And Killed An Estimated 95% Of The New World's Indian Population.

Lest Those Islands Still Seem To You Too Remote In Space And Time To Be Relevant To Our Modern Societies, Just Think About The Risks... Of Our Increasing Globalization And Increasing Worldwide Economic Interdependence.

The Rate Of Human Invention Is Faster, And The Rate Of Cultural Loss Is Slower, In Areas Occupied By Many Competing Societies With Many Individuals And In Contact With Societies Elsewhere.

African Cavalry Mounted On Rhinos Or Hippos Would Have Made Mincemeat Of European Cavalry Mounted On Horses. But It Couldnt Happen.

Even To This Day, No Native Australian Animal Species And Only One Plant Species-the Macadamia Nut-have Proved Suitable For Domestication. There Still Are No Domestic Kangaroos.