Mr. Moore retired with 38 years of Federal Service with the Department of Defense and the Navy Marine Mammal Program, where he led the Scientific and Veterinarian Support Branch, Biosonar Program Office, and System Development Branch. His research specialized in psychoacoustics and biosonar. He co-edited Animal Sonar: Processes and Performance, organized and conducted many international meetings on marine mammals and echolocation, published over 80 peer-reviewed scientific articles, given hundreds of technical presentations and innumerable briefings for scientific, governmental, and sponsoring audiences.