Planar cell polarity coordination in a cnidarian embryo provides clues to animal body axis evolution
The earliest animals are thought to have been multicellular assemblages such as the “choanoblastaea”, which evolved from a unicellular ancestor (Brunet and King, 2017; Maldonado, 2004; Nielsen, 2008; Sebé-Pedrós et al., 2017). Subsequent evolutionary …