The Cambrian appearance of fossils representing diverse phyla has long inspired
hypotheses about possible genetic or environmental catalysts of early animal evolution …

The world's most revered and eloquent interpreter of evolutionary ideas offers here a work of
explanatory force unprecedented in our time—a landmark publication, both for its historical …

Cnidarians are phylogenetically basal members of the animal kingdom (> 600 million years
old). Together with plants they share some remarkable features that cannot be found in …

Over 99% of modern animals are members of the evolutionary lineage Bilateria. The
evolutionary success of Bilateria is credited partly to the origin of bilateral symmetry …

This book introduces generative grammar as an area of study and asks what it tells us about
the human mind. Wolfram Hinzen lays the foundation for the unification of modern …

Background Hox genes were critical to many morphological innovations of bilaterian
animals. However, early Hox evolution remains obscure. Phylogenetic, developmental, and …

Bilaterian animals have a Hox gene cluster essential for patterning the main body axis, and
a ParaHox gene cluster. Comparison of Hox and ParaHox genes has led workers to …

The conservation of developmental functions exerted by Antp-class homeoproteins in
protostomes and deuterostomes suggested that homologs with related functions are present …

Comparisons with cnidarians, long considered to be'simple'animals, are providing crucial
insights into the origins of conserved developmental mechanisms and the nature of the …

Nuclear hormone receptors comprise a characteristic family of transcription factors found in
vertebrates, insects and nematodes. Here we show by cDNA and gene cloning that a …