Creative Commons Licence
Imaging technique: 

Range of developmental stages present in the brood, from fresh laid on left to nearly complete development on the right. Both embryonic reversals evident in this series. The first egg on left shows signs of first cleavages on the top end. The next five embryos are in reversed position. Last embryo on right shows second reversal position prior to hatching.

Maturity: Embryo; Lab or Wild: Lab; Origin: Gulf of mexico

John Forsythe
Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith