Average embryo shapes reproduced by the elastic model.

<p>In each panel, the left half shows average shapes from <a href="http://www.plosbiology.org/article/info:doi/10.1371/journal.pbio.2005536#pbio.2005536.g004" target="_blank">Fig 4</a> (thick red line) and corresponding fits (black line) from the elastic model for different stages of inversion. The right half shows colour-coded representations of the meridional curvature <i>κ</i>_<i>s</i> and stretches <i>f</i>_<i>s</i> (meridional) and <i>f</i>_<i>ϕ</i> (circumferential) in the fitted shapes. See <a href="http://www.plosbiology.org/article/info:doi/10.1371/journal.pbio.2005536#pbio.2005536.s007" target="_blank">S1 Data</a> for numerical values.