QJM vol. 97 no. 9 © Association of Physicians 2004; all rights reserved.
Biologic |
Jaws
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The auto-dislocating and deadly jaws of Carcharodon carcharias have killed, terrified and/or entertained many representatives of many species, from other elasmobranchs to Man. The specialized development of rather differently arranged jaws was an important step in mammalian development, marking an important step towards a predatory lifestyle and to hearing well in a less dense medium (air vs. water). But the development of the forebrain has an odd role in the whole business, and recent work in this area has, I know, been keeping many of you on the edge of your seats. A commentary may be helpful.
In jawed