Evolution of the cochlea of the ear, consisting of the scala media, the scala tympani, and the scala vestibuli. Regarding mammals, placental and marsupial cochleae have similar cochlear responses to auditory stimulation as well as DC resting potentials. This leads to the investigation of the relationship between these therian mammals and researching their ancestral species to trace the origin of the cochlea. This spiral-shaped cochlea that is in both marsupial and placental mammals is traced back to approximately 120 million years ago. The development of the most basic basilar papilla (the auditory organ that later evolved into the Organ of Corti in mammals) happened
Who Are You (Buffy the Vampire Slayer) Who Are You (Buffy the Vampire Slayer) "Who Are You" is the 16th episode of season 4 of the television show "Buffy the Vampire Slayer". Written and directed by series creator Joss Whedon, it originally aired February 29, 2000 on the WB Television Network. Buffy, in Faith's body, is abducted by the Watchers Council's team. Meanwhile Faith, in Buffy's body, gives herself a makeover and heads to The Bronze, where she has ruthless fun at the expense of Spike and Tara. Tara recognizes that something is wrong, and she and Willow perform a spell to find the real Buffy. Faith