Sea stars, urchins and kelp forests
A few weeks ago, Sarah Gravem lowered a “ravenous, terrifying predator” from her boat down to the ocean floor off Sitka. Then she released it. In a slow-motion drama, sea urchins fled as a pizza-size sunflower sea star oozed toward them. Gravem explained: “I release one right in the middle and watch everybody freak out. […]