Australia Is The Most Isolated Continent.

Technology Has To Be Invented Or Adopted.

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 Had Very Few Native Domesticated Animal Species From Which Humans Could Acquire Such Diseases.

In Contrast [to Trees And Fish], Oil, Metals, And Coal Are Not Renewable; They Don't Reproduce, Sprout, Or Have Sex To Produce Baby Oil Droplets Or Coal Nuggets.

Today Charles Darwin Is Best Known For Establishing The Fact Of Evolution And For Recognizing The Major Role Of Natural Selection In Driving It.

Human Societies Vary In Lots Of Independent Factors Affecting Their Openness To Innovation.