neotenic

/ˌniːəˈtɛnɪk/
adjective
  1. Relating to or characterized by neoteny, the retention of juvenile features in an adult animal or plant.
    • Axolotls are a well-known neotenic species, keeping their gills and larval appearance throughout life.
    • Some scientists study neotenic traits in humans, such as our large brains and flat faces.
    • The neotenic features of certain salamanders allow them to reproduce while still looking like larvae.
Synonyms
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