Among the excellent content on Nature Reports Stem Cells is an especially exciting regular feature, “”https://blogs.nature.com/peer-to-peer/2007/06/inside_the_paper_postpublicati_1.html">Inside the Paper", which zeros in on recent scientific papers in the field published in Nature and provides detailed expert comment and author responses drawn from the peer-review process. The editors intend this feature to let readers see the paper’s context, strengths and caveats, as well as make the peer- review process a little more transparent.

Two Inside the Paper features have been published this month. The first, Cloning from Chromosomes, discusses the Article by D. Egli et al., Developmental reprogramming after chromosome transfer into mitotic mouse zygotes, in Nature 447, 679–685 (2007). Read a panel of experts’ comments on this interesting article, responses from the authors, and comment yourself on The Niche (the Nature Reports Stem Cells blog).

The second Inside the Paper (21 June), Rewriting in blood, is about a paper by I. M. Samokhvalov et al(Nature 446, 1056–1061; 2007), reporting a surprising origin for blood stem cells. As before, you can read some of the peer reviewer’s comments, responses from the authors and invite you to add your contribution on The Niche.