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
The Body in the Library (film) the case, "you'll have to admit it has all the bizarre elements of a cheap thriller." Once hooked, you won't be able to turn it off. "The Body in the Library" was repeated on BBC Four in September and October 2013. Miss Marple helps her neighbours the Bantrys when a lovely young girl is found dead in their library. The girl is traced to a seaside resort and the desperate family of a wealthy old man. The Body in the Library (film) The Body in the Library is a 1984 television film adaptation of Agatha Christie's 1942 detective novel "The