Why Were There Far More Species Of

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.

Much Of Human History Has Consisted Of Unequal Conflicts Between The Haves And The Have-nots.

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.

Why Is It That You White People Developed So Much Cargo And Brought It To New Guinea, But We Black People Had Little Cargo Of Our Own?

To Dismiss The Current Extinction Wave On The Grounds That Extinctions Are Normal Events Is Like Ignoring A Genocidal Massacre On The Grounds That Every Human Is Bound To Die At Some Time Anyway.