Frank E. Zachos offers a comprehensive review of one of today’s most important and contentious issues in biology: the species problem. After setting the stage

A world of categones devmd of spirit waits for life to return. Saul Bellow, Humboldt's Gift The stock-in-trade of communicating hypotheses about the historical

No question in theoretical biology has been more perennially controversial or perplexing than "What is a species?" Recent advances in phylogenetic theory have c

Color print. Concepts of Biology is designed for the typical introductory biology course for nonmajors, covering standard scope and sequence requirements. Th

This open access book offers the first comprehensive account of the pan-genome concept and its manifold implications. The realization that the genetic repertoir