David M. Jacobs
David M. Jacobs is a historian and professor of American history known for his extensive research into UFO phenomena and abduction experiences. He was born on August 10, 1942, and earned his PhD from the University of Wisconsin–Madison in 1973 in intellectual history. His doctoral dissertation, The Controversy over Unidentified Flying Objects in America: 1896–1973, was only the second PhD ever granted on a UFO-related topic and later became the basis for his book The UFO Controversy in America (1975), published by Indiana University Press with a foreword by J. Allen Hynek.
Jacobs began researching UFOs in the mid-1960s while still a graduate student, and his academic work positioned the subject within the context of American culture and public perception. After a brief period at the University of Nebraska, he joined Temple University in the mid-1970s, where he taught for more than three decades until his retirement in 2011. During his time there, he taught a long-running course titled “UFOs and American Society” for over 25 years, one of the only regularly offered accredited university courses on the topic in the United States. He also served as director of Temple’s American Studies Program and was recognized for his work as an undergraduate advisor.
Although his academic research on UFOs began in the 1960s, his focus intensified toward abduction experiences in the late 1970s and early 1980s, eventually leading him to conduct hypnotic regression sessions with individuals who reported encounters with non-human intelligences. Over time, he carried out nearly 1,200 sessions with more than 150 experiencers worldwide, compiling an estimated 3,000 hours of testimony. From this material, he developed a structured typology of the abduction experience and contributed to broader studies of unusual experiences, including collaboration on the 1992 Roper Organization poll alongside Budd Hopkins. He also worked with Hopkins and John Carpenter to provide workshops and guidance on hypnosis methods used in this field.
His research is presented across five major works, each expanding on a developing framework. Secret Life: Firsthand Documented Accounts of UFO Abductions (1992) outlines what he described as a consistent abduction scenario based on numerous case studies. The Threat (1998) introduces his hypothesis of a coordinated hybridization program, presenting it as a falsifiable explanation and arguing that the evidence points toward a structured effort that may lead to large-scale integration or control. UFOs and Abductions: Challenging the Borders of Knowledge (2000), which he edited, brings together academic perspectives on the subject, while Walking Among Us: The Alien Plan to Control Humanity (2015) describes what he presents as a later stage of this process, involving human-alien hybrids living among the population and being trained to blend seamlessly into society.
Jacobs has consistently framed the phenomenon as a structured, non-human program rather than a spiritual or symbolic experience, emphasizing themes of reproductive procedures, hybrid development, and long-term interaction with humanity. He has described this framework as a testable explanation for the UFO mystery and presented aspects of this research in academic settings, including early presentations to scientific audiences such as his 1989 paper at Cornell University. At the same time, he has acknowledged that hypnosis-based evidence carries inherent limitations, even as he argues that the volume and consistency of testimony point toward an underlying reality.
In later years, he founded and eventually closed the International Center for Abduction Research (ICAR), concluding his final direct work with abductees around 2018. Since then, he has focused on developing a book addressing proper hypnosis methodology for abduction research.
Across his books and interviews, Jacobs provides detailed descriptions of the entities and processes reported during abduction experiences. He describes small grey beings as the primary operators, functioning as subordinate workers that carry out procedures but operate within a larger hierarchical system. These beings are consistently reported as communicating telepathically and performing medical and reproductive tasks. Central to his framework is the development of hybrid beings, beginning with early-stage forms that retain more grey-like features and progressing toward fully human-appearing individuals often referred to as “hubrids.” According to Jacobs, these hybrids are raised in controlled environments and later brought into contact with abductees, who are tasked with helping them learn basic human behaviors such as communication, movement, and social interaction.
He outlines a consistent sequence of events that appear across independent accounts, including transport to a craft-like environment, physical examinations, reproductive procedures, and interaction with hybrid offspring. These experiences often include memory alteration or suppression, with abductees recalling events only through hypnosis. Jacobs emphasizes that the technological details of the craft are secondary to the structured and repetitive nature of these encounters, which he argues point toward a long-term program rather than isolated incidents.
Jacobs proposes that the overarching objective is a multi-generational process of hybridization leading to integration into human society. In his later work, particularly Walking Among Us, he describes what he sees as an advanced phase of this process, where human-appearing hybrids are already operating within everyday environments. He characterizes this as a gradual and largely undetected transition, suggesting that the consistency of reported experiences indicates a coordinated and ongoing non-human presence interacting with humanity at a systemic level.
