Echinodermata
Echinodermata
Pisaster ochraceus Ochre sea star Phylum: Echinodermata Facts 1. their color can range from purple to orange to red an brown 2. they are keystone species and even a small loss in ochre sea stars can have a profound impact on the local ecosystem 3.most sea stars live up to only 4 years but ochre sea stars can live up to 20 years. |