Evolutionary biology

What is the biological species concept? Its merits and demerits

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Definition of Biological Species Concept (BSC) The biological species concept (BSC) is a widely used definition of a species in biology. This concept defines a species as a group of organisms that can interbreed and produce viable offspring. The BSC was proposed by Ernst Mayr in 1942 and has been used extensively in the study […]

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Gene Flow: Its Role in Shaping Populations and Species

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Gene flow is the movement of genetic material (i.e., genes) from one population to another. This can occur through the migration of individuals or the exchange of gametes (i.e., sperm and eggs) between populations. Gene flow can significantly impact the genetic makeup of a population and can affect the evolution of a species. A critical

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