Overview A species is a group of organisms that interbreed and produce fertile offspring. Typically, individuals of the same species appear similar and ...

Speciation describes the formation of one or more new species from one or sometimes multiple original species. The resulting species are discrete from the ...

Overview Speciation usually occurs over a long evolutionary time scale, during which the species may be isolated or continue to interact. If two emerging ...

Speciation is the evolutionary process resulting in the formation of new, distinct species—groups of reproductively isolated populations. The ...

Hybrid zones are narrow regions where two closely related species interact, mate, and produce hybrids. Relative to either parent species, hybrids may ...