... from the Yellow Submarine film (July 17, 1968) (2.21 MB, wmv, colour).
When they were passing through the foothills of the Headlands (Sea Of Heads) they get separated from the submarine and John sang this song, featuring image-laden verses which present an overtly psychedelic travelogue. This, as well as the initials of the title and the dreamlike-quality of the melody, has led many to speculate that it was written in reference to LSD. The Beatles denied it. However, it inspired the name of an anthropological find: an old female hominid.