Note to users. If you're seeing this message, it means that your browser cannot find this page's style/presentation instructions -- or possibly that you are using a browser that does not support current Web standards. Find out more about why this message is appearing, and what you can do to make your experience of our site the best it can be.

Science 1 December 1995:
Vol. 270. no. 5241, p. 1436
DOI: 10.1126/science.270.5241.1436
Prev | Table of Contents | Next

Research News

Joshua Fischman

The mark of a mammal is a migrating ear. A chain of small bones that used to be part of the jaw moved back to the skull and became the middle ear--a journey that set true mammals apart from every other vertebrate. A new theory argues that this mysterious transformation of jaw and ear was actually driven by a different body part: the expansion of the brain.




To Advertise     Find Products

Science. ISSN 0036-8075 (print), 1095-9203 (online)