Evolution of the cochlea about 7 mm long. Like in lepidosaurs and archosaurs, it contains a lagena, a vestibular sensory epithelium, at its tip. Only in therian mammals (marsupials and placentals) is the cochlea truly coiled 1.5 to 3.5 times. Whereas in monotremes there are many rows of both inner and outer hair cells in the organ of Corti, in therian (marsupial and placental) mammals the number of inner hair-cell rows is one, and there are generally only three rows of outer hair cells. Amphibians have unique inner ear structures. There are two sensory papillae involved in hearing, the basilar (higher frequency) and amphibian
Electric Music for the Mind and Body "I-Feel-Like-I'm-Fixin'-to-Die". Bruce Eder in a retrospective review for AllMusic felt that the album is "one of the most important and enduring documents of the psychedelic era". The album was included in Robert Dimery's 1001 Albums You Must Hear Before You Die. All songs by Country Joe McDonald, except where noted Electric Music for the Mind and Body Electric Music for the Mind and Body is Country Joe and the Fish's debut album. Released in May 1967 on the Vanguard label, it was one of the first psychedelic albums to come out of San Francisco. Tracks from the LP, especially "Section