noun
adaptive radiation
A biological term referring to the rapid diversification of a single ancestral species into many new forms adapted to different ecological niches.
ダーウィンフィンチは適応放散の代表例である。
Darwin's finches are a classic example of adaptive radiation.
Compound of 適応 (adaptation) and 放散 (radiation, dispersal). The term is a direct translation of the English 'adaptive radiation'.