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! The Story of Anvil gig at The Marquee Club in London, where he introduced himself to the band as "England's number-one Anvil fan." He subsequently became a roadie for the band on their '82, '84 and '85 tours, and was given the nickname "Teabag" by the band. He reunited with Anvil after a break of 20 years, and started shooting a documentary about them in November 2005. The film premiered at the Sundance Film Festival in January 2008, and won Audience Awards at the 2008 Sydney Film Festival, Los Angeles Film Festival and Galway International Film Festival. The film has been nominated in the