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Red Sea Urchin
According to some study, urchins can live for over 100 years, and several 200-year-old urchins have been discovered on Vancouver Island. Annual growth rates in Southeast Alaska have been shown to be between 0 and 20 mm per year in field investigations.
Can you believe these hardened creatures surivive unforgiving environments for up to 200 years- some even surpassing 400 years, making them one of our top longest living animals.
