Why mammal ears went on the move

Fischman, J.

Science 270(5241): 1436

1995


ISSN/ISBN: 0036-8075
PMID: 7491485
Document Number: 449567
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.

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