Ice Cream Cone
Ice Cream- Head of Malleus
Cone- Body and short process of incus
Q: What bony feature distinguishes mammals from lower vertebrates?
A: Mammals have three middle ear bones
References:
Earful of Jaw by Stephen J. Gould available at: http://books.google.com/books?id=_kOoVw0SIhUC&printsec=frontcover&source=gbs_ge_summary_r&cad=0#v=onepage&q&f=false (see chapter 6)
American Museum of Natural History (AMNH) website
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