What defines a species?

A species is defined as a group capable of interbreeding and producing viable offspring. This definition is based on the biological species concept, which emphasizes reproductive isolation and the ability to create a population that can sustain itself over generations.

The essence of being part of a species lies in the ability to reproduce and produce offspring that can also reproduce. Individuals within a species share common characteristics and can mate under natural conditions, leading to the continuation of their genetic lineage. This reproductive capability is crucial because it helps maintain the distinct genetic makeup of the species while allowing for some variation.

Other definitions, such as a group that cannot interbreed or a category of organisms that cannot reproduce, do not accurately capture the essence of what defines a species. A set of genetically identical individuals would apply more to clones or asexual reproduction rather than species, where genetic diversity typically exists. Therefore, focusing on the ability of members of a species to interbreed and produce viable offspring captures the fundamental concept of a species in biological terms.