Comment on

• There's more than one frog in the pond: a survey of the Amphibia and their contributions to developmental biology.

  Callery EM. Callery EM. Semin Cell Dev Biol. 2006 Feb;17(1):80-92. doi: 10.1016/j.semcdb.2005.11.001. Epub 2005 Dec 6. Semin Cell Dev Biol. 2006. PMID: 16337414 Review.
• Germ layers to organs: using Xenopus to study "later" development.

  Blitz IL, Andelfinger G, Horb ME. Blitz IL, et al. Semin Cell Dev Biol. 2006 Feb;17(1):133-45. doi: 10.1016/j.semcdb.2005.11.002. Epub 2005 Dec 6. Semin Cell Dev Biol. 2006. PMID: 16337415 Review.
• Transcriptional regulation of mesendoderm formation in Xenopus.

  Wardle FC, Smith JC. Wardle FC, et al. Semin Cell Dev Biol. 2006 Feb;17(1):99-109. doi: 10.1016/j.semcdb.2005.11.008. Epub 2005 Dec 13. Semin Cell Dev Biol. 2006. PMID: 16356740 Review.
• Maternal determinants of embryonic cell fate.

  Heasman J. Heasman J. Semin Cell Dev Biol. 2006 Feb;17(1):93-8. doi: 10.1016/j.semcdb.2005.11.005. Epub 2006 Jan 19. Semin Cell Dev Biol. 2006. PMID: 16426874 Review.
• Genetic and genomic prospects for Xenopus tropicalis research.

  Carruthers S, Stemple DL. Carruthers S, et al. Semin Cell Dev Biol. 2006 Feb;17(1):146-53. doi: 10.1016/j.semcdb.2005.11.009. Epub 2006 Jan 20. Semin Cell Dev Biol. 2006. PMID: 16427790 Review.
• Emergence of organizer function: a lot of "stuff" involved.

  Lebreton S, Jones CM. Lebreton S, et al. Semin Cell Dev Biol. 2006 Feb;17(1):110-6. doi: 10.1016/j.semcdb.2006.01.002. Epub 2006 Feb 28. Semin Cell Dev Biol. 2006. PMID: 16503175 Review.
• An obligatory caravanserai stop on the silk road to neural induction: inhibition of BMP/GDF signaling.

  Vonica A, Brivanlou AH. Vonica A, et al. Semin Cell Dev Biol. 2006 Feb;17(1):117-32. doi: 10.1016/j.semcdb.2005.11.013. Epub 2006 Mar 3. Semin Cell Dev Biol. 2006. PMID: 16516504 Review.