There could be a profound ecological impact on one of the world's oldest continuously living reefs in the Red Sea, estimated at over 5,000 years old. Getty Images Black sea urchins used to blanket ...

HIRONO, Iwate Prefecture--Sea urchin are a culinary delicacy, but because their shells are often seen as too difficult or costly to recycle, they end up getting tossed out in bulk. But a local ...

For about a decade, the Tel Aviv team has been studying black sea urchins in the Eastern Mediterranean after they appeared from the Red Sea as an invasive species. While these populations ...