Previous Article Next Article Table of Contents Science, Vol.263, No.5154, 1779-1780, 1994 DOI10.1126/science.263.5154.1779 Export Citation The Skull, Vol 1, Development, Vol 2, Patterns of Structural and Systematic Diversity, Vol 3, Functional and Evolutionary Mechanisms, by J. Hanken, B.K. Hall Schwenk K Please enable JavaScript to view the comments powered by Disqus.