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Developmental biology

Led by the nose

Hagfish embryos show developmental features that contradict the idea that these jawless fish are the most primitive living vertebrates. The findings also help to trace the evolution of vertebrate cranial structure. See Article p.175

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Figure 1: Cranial anatomy of living and fossil vertebrates.


  1. *This article and the paper under discussion2 were published online on 19 December 2012.


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Correspondence to Philippe Janvier.

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Janvier, P. Led by the nose. Nature 493, 169–170 (2013).

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