|adaptive radiation (ə-dāp'tĭv) Pronunciation Key
The evolutionary diversification of a species or single ancestral lineage into various forms that are each adaptively specialized to a specific environmental niche. Adaptive radiation generally proceeds most rapidly in environments where there are numerous unoccupied niches or where competition for resources is minimal. See Note at adaptation.
Dictionary.com presents 366 FAQs, incorporating some of the frequently asked questions from the past with newer queries.