Researchers believe purple sea urchins can live to be as old as 70 years, but more commonly live to be around 20.

What season is sea urchin?

September – March, with a peak in winter. Commercial harvest seasons vary slightly by zone.

Where do most sea urchins live?

HABITAT. Sea urchins live only in the ocean and cannot survive in fresh water. They are found from the intertidal to the deep ocean. The species that we are likely to use in the lab are either from the intertidal or the shallow subtidal.