what does it deal with?
The book combines concepts of zoology and genetics, and features Mayr's biological species concept. The biological species concept defines a species in terms of biological factors such as reproduction, taking into account ecology, geography, and life history
Systematics and the Origin of Species
 the book combines concepts of zoology and genetics, and features Mayr's biological species concept. The biological species concept defines a species in terms of biological factors such as reproduction, taking into account ecology, geography, and life history; it remains an important and useful idea in biology, particularly for animal speciation.
define species as a group of organisms that can reproduce to produce fertile offspring UNANSWERABLE what species means? A species is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring,  In addition, paleontologists use the concept of the chronospecies since fossil reproduction cannot be examined. is there any famous concept followed regarding this? Yes, Most modern textbooks make use of Ernst Mayr's 1942 definition, known as the Biological Species Concept as a basis for further discussion on the definition of species. It is also called a reproductive or isolation concept. who was he? He was a renowned taxonomist, tropical explorer, ornithologist, philosopher of biology, and historian of science. when was he born? 5 July 1904 what other works has he done? He published "Systematics and the Origin of Species"
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Systematics and the Origin of Species [SEP] Introduction
Systematics and the Origin of Species from the Viewpoint of a Zoologist is a book written by zoologist and evolutionary biologist Ernst Mayr, first published in 1942 by Columbia University Press. The book became one of the canonical publications on the modern synthesis. Based on Mayr's Jesup Lectures delivered at Columbia University in 1941, the book combines concepts of zoology and genetics, and features Mayr's biological species concept. The biological species concept defines a species in terms of biological factors such as reproduction, taking into account ecology, geography, and life history; it remains an important and useful idea in biology, particularly for animal speciation.