RUNNING SPEED AND INTERMEDIATE BRIGHTNESS DISCRIMINATION IN THE FRESH  WATER TURTLE (CHRYSEMYS).
D000818:Animals; D003118:Color Perception; D004193:Discrimination Learning; D005618:Fresh Water; D012104:Reptiles; D012106:Research; D012420:Running; D014426:Turtles
COLOR PERCEPTION; DISCRIMINATION LEARNING; EXPERIMENTAL LAB STUDY; REPTILES