Technology Has To Be Invented Or Adopted.

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 Capable, Say, Of Catching Insects In Mid-air, With The Result That Birds Of Similar Habitats Tend To Have Very Similar Anatomies, Whatever Their Ancestry. For Example, American Vultures Look And Behave Much Like Old World Vultures, But Biologists Have Come To Realize That The Former Are Related To Storks, The Latter To Hawks, And That Their Resemblances Result From Their Common Lifestyle.

Twenty Years Ago, You Might Have Been Pessimistic And Said There's No Hope. But These Days, Some Of Our Very Biggest Companies Are Acting Remarkably Cleanly. And In Some Cases, Although Not All Cases, The Ceos Are The Driving Forces Behind That.

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.

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 Are Looking For Someone Who Reminds Us Of Our Parent Or Sibling Of The Opposite Sex, Who In Turn Resembles Us.

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.