How have concepts of the development of life on Earth changed? In this section, we will trace the path of biological thought from the earliest pre-scientific concepts to the formation of modern evolutionary theory.
In addition to the history of views, we will analyze in detail the concept of the species as the fundamental unit of systematics and evolution. You will study all species criteria: from the classical morphological to the genetic and physiological-biochemical.
During colloquia and exams, instructors most often ask you to compare historical concepts (for example, the fundamental differences between Lamarck's and Darwin's theories) and to explain with examples why relying on a single criterion is never sufficient for an accurate species determination. This material serves as a rigorous foundation for understanding all subsequent topics in micro- and macroevolution.