Not Until The Beginning Of The 20th

The Adoption Of Agriculture, Supposedly Our Most Decisive Step Toward A Better Life, Was In Many Ways A Catastrophe From Which We Have Never Recovered.

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.

Science Is Often Misrepresented As "the Body Of Knowledge Acquired By Performing Replicated Controlled Experiments In The Laboratory." Actually, Science Is Something Broader: The Acquisition Of Reliable Knowledge About The World.

I've Always Been Interested In A Lot Of Things, And A Lot Of Things At The Same Time, And I Always Tried To Explain Them To Myself. I Ask A Lot Of Questions.

To Science We Owe Dramatic Changes In Our Smug Self-image. Astronomy Taught Us That Our Earth Is Not The Center Of The Universe, But Merely One Of Nine Planets Circling One Of Billions Of Stars. From Biology We Learned That Humans Were Not Specially Created By God But Evolved Along With Tens Of Millions Of Other Species.