Common name: Purple Sea Urchin
Locations: Eastern Pacific
Group: Marine Life → Invertebrates → Sea Urchins
Young ones can be pale, but the short spines are still distinctive.
These eat kelp. In turn, urchins are eaten by many species of sea star. But with the wasting disease reducing many sea star populations the last few years, urchins have taken over at some Monterey dive sites and reduced kelp coverage. This makes the sea otters sad.