Middle ear to sounds of higher frequency, because these are better taken up by the inner ear (which also responds to higher frequencies than those of non-mammals). The malleus, or "hammer", evolved from the articular bone of the lower jaw, and the incus, or "anvil", from the quadrate. In other vertebrates, these bones form the primary jaw joint, but the expansion of the dentary bone in mammals led to the evolution of an entirely new jaw joint, freeing up the old joint to become part of the ear. For a period of time, both jaw joints existed together, one medially and one
Anvil Vapre Anvil Vapre Anvil Vapre is the fifth EP by British electronic music duo Autechre, released by Warp Records on 2 October 1995. It is a companion to their album "Tri Repetae", being based on material from the same sessions, which were left out for space reasons. Unlike previous EPs, "Anvil Vapre"s tracks were split across two vinyl discs that were released separately. All four tracks are included on the CD pressing. "Anvil Vapre" was also released alongside "Garbage" as part of the US version of "Tri Repetae". The song names are inspired by scenery associated with Snake Pass; Bad Vilbel