. Chimpanzee intelligence and its vocal expressions. Chimpanzees; Animal intelligence; Sound production by animals. SOUNDS ASSOCIATED WITH OTHER CREATURES 139 A horse with its rider entered the yard some distance away. She became very alert: i Pf> 272 ho - oh As they came nearer, she retreated to hide behind one of her human friends; from this position, however, she watched the approach of the horse intently: ^ 273 ho - oh ho And when it came close to the screen uttered more ani- matedly: i^iJ: pp p 274 ho-ho - oh ho - oh ho - oh ho - oh Dr. Y.'s automobile stood by the house with the motor
. Chimpanzee intelligence and its vocal expressions. Chimpanzees; Animal intelligence; Sound production by animals. SOUNDS ASSOCIATED WITH OTHER CREATURES 139 A horse with its rider entered the yard some distance away. She became very alert: i Pf> 272 ho - oh As they came nearer, she retreated to hide behind one of her human friends; from this position, however, she watched the approach of the horse intently: ^ 273 ho - oh ho And when it came close to the screen uttered more ani- matedly: i^iJ: pp p 274 ho-ho - oh ho - oh ho - oh ho - oh Dr. Y.'s automobile stood by the house with the motor running, and she sounded her notes of alarm thus—dragging the intermediate tones in a genuine portamento:. ho-oh ho-oh ho-oh ho-oh ho-oh ho-oh ho-oh 275. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Yerkes, Robert Mearns, 1876-1956; Learned, Blanche W. Baltimore, The Williams & Wilkins Company
Size: 4169px × 600px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1920, booksubjectanimalintelligence
