The Spandrels Of San Marco And The

Contingency Is Rich And Fascinating; It Embodies An Exquisite Tension Between The Power Of Individuals To Modify History And The Intelligible Limits Set By Laws Of Nature. The Details Of Individual And Species's Lives Are Not Mere Frills, Without Power To Shape The Large-scale Course Of Events, But Particulars That Can Alter Entire Futures, Profoundly And Forever.

Each Of The Major Sciences Has Contributed An Essential Ingredient In Our Long Retreat From An Initial Belief In Our Own Cosmic Importance. Astronomy Defined Our Home As A Small Planet Tucked Away In One Corner Of An Average Galaxy Among Millions; Biology Took Away Our Status As Paragons Created In The Image Of God; Geology Gave Us The Immensity Of Time And Taught Us How Little Of It Our Own Species Has Occupied.

If New Species Arise Very Rapidly In Small, Peripherally Isolated Local Populations, Then The Great Expectation Of Insensibly Graded Fossil Sequences Is A Chimera. A New Species Does Not Evolve In The Area Of Its Ancestors; It Does Not Arise From The Slow Transformation Of All Its Forbears. Co-author With Niles Eldridge

Since The Universe Must Contain Millions Of Appropriate Planets, Consciousness In Some Form - But Not With The Paired Eyes And Limbs, And The Brain Built Of Neurons In The Only Example We Know - May Evolve Frequently. But If Only One Origin Of Life In A Million Ever Leads To Consciousness, Then Martian Bacteria Most Emphatically Do Not Imply Little Green Men.

... Many Folks Take Them Seriously Because They Just 'know' That Evolution Can Never Be Seen In The Immediate Here And Now. In Fact, A Precisely Opposite Situation Prevails: Biologists Have Documented A Veritable Glut Of Cases For Rapid And Eminently Measurable Evolution On Timescales Of Years And Decades.