It Is Curious How Often

Scientific Progress Consists In The Development Of New Concepts.

It Is Curious How Often Erroneous Theories Have Had A Beneficial Effect For Particular Branches Of Science.

Our Understanding Of The World Is Achieved More Effectively By Conceptual Improvements Than By Discovery Of New Facts

Two Forms Or Species Are Sympatric, If They Occur Together, That Is If Their Areas Of Distribution Overlap Or Coincide. Two Forms (or Species) Are Allapatric, If They Do Not Occur Together, That Is If They Exclude Each Other Geographically. The Term Allopatric Is Primarily Useful In Denoting Geographic Representatives.

Living In An Entirely Different Physical As Well As Biotic Environment, Such A Population Would Have Unique Opportunities To Enter New Niches And To Select Novel Adaptive Pathways.