Robert Ingersoll (BSc, MS) has been a tireless champion of captive chimpanzees since the 1970s. He entered the world of primates as an undergraduate student at the University of Oklahoma's Institute for Primate Studies, where the research focus was on cognition, language, and interspecies communication between chimpanzees and humans, using American Sign Language. He quickly came to see the chimpanzees as friends rather than as research subjects. After several productive years, funding for the program was cut by the university, and the chimpanzee colony was sold to a medical research laboratory for invasive research. This led Robert to a crusade to free his chimpanzee friends that has lasted decades.

Anna Scarna (BSc Hons, DPhil, PGCTHE, PGCert, CPsychol) is a psychologist and neuroscientist with expertise in language, personality and psychological disorders. Her Doctor of Philosophy was on the composition of the monolingual and bilingual lexicon, and she explored the factors that affect object naming and reading. She has conducted award-winning research into non-drug treatments for dopamine in bipolar disorder and schizophrenia at Oxford University, United Kingdom, where she runs courses in brain and behaviour/neuroscience, personality, and psychological disorders covering topics including personality traits, addiction, and social behaviours. She teaches various international tutorial courses, and has been running the popular Oxford University online Introduction to Psychology course.

Books by Robert Ingersoll