sympatric speciation
Technical term in evolutionary biology referring to the formation of new species within the same geographic area.
Sympatric speciation is a form of speciation that occurs without geographic isolation.
Compound of 同所 (dōsho, 'same place'), 的 (-teki, adjectival suffix), 種 (shu, 'species'), and 分化 (bunka, 'differentiation'). The term is a direct translation of the English 'sympatric speciation'.