The Anasazi Did Manage To Construct In

Why Were There Far More Species Of Domesticated Animals In Eurasia Than In The Americas? The Americas Harbor Over A Thousand Native Wild Mammal Species, So You Might Initially Suppose That The Americas Offered Plenty Of Starting Material For Domestication.

I Decided That Now Is The Time To Start Doing The Things That Really Interest Me And I Find Important. It Was In The 10 Years Of The Macarthur Grant That I Began Working On My First Book... And I Began Putting More Work Into Environmental History.

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 Than East/west. Those Eurasian Domestic Mammals Spread Southward Very Slowly In Africa, Because They Had To Adapt To Different Climate Zones And Different Animal Diseases.

People Often Ask, "what Is The Single Most Important Environmental Population Problem Facing The World Today?" A Flip Answer Would Be, "the Single Most Important Problem Is Our Misguided Focus On Identifying The Single Most Important Problem!

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.