Monkey Research
Photo Researchers, Inc.
Experimental Monkey
Science Source
Primate Fear Testing
Science Source
Infant Monkeys At Play
Science Source
Maternal Deprivation Research
Science Source
Maternal Deprivation Research #3
Science Source
Nursery Cages
Science Source
Primate Socialization Research
Science Source
Rhesus Macaque, India
B. G. Thomson
Rhesus Macaque, India #2
B. G. Thomson
Primate Fear Testing #1
Science Source
Rhesus Macaque
Raul Gonzalez Perez
Maternal Deprivation Research #2
Science Source
Rhesus Macaque, India #1
B. G. Thomson
Rhesus Monkey
Lynn Hoffman
Rhesus Monkey
Tierbild Okapia
Rhesus Macaque, India #3
B. G. Thomson
Harlow Monkey Experiment
Science Source
Harlow Monkey Experiment #1
Science Source