Changes in the darkness of four body features of bluegill sunfish (Lepomis macrochirus Rafinesque) during aggressive encounters.
D000220:Adaptation, Biological; D000374:Aggression; D000818:Animals; D001522:Behavior, Animal; D002856:Chromatophores / Q000378:metabolism*; D005399:Fishes / Q000378:metabolism / Q000502:physiology*; D006801:Humans; D008547:Melanophores / Q000378:metabolism*; D012867:Skin / Q000378:metabolism / Q000648:ultrastructure; D012930:Social Dominance