Echinocyamus pusillus
... that the sea urchin Echinocyamus pusillus turns bright green when injured?
... that the sea urchin <i id="mwBxw"><b id="mwBx0"><a href="./Echinocyamus_pusillus" id="mwBx4" rel="mw:WikiLink" title="Echinocyamus pusillus">Echinocyamus pusillus</a></b></i> turns bright green when injured?