Sea urchins are dying in large numbers across the Caribbean, according to scientists who are racing to pinpoint the cause of the mysterious die-off.
The rapid and widespread deaths of long-spined sea urchins were first observed in February in the U.S. Virgin Islands but have since spread as far west as Jamaica, according to the , an organization that monitors the health of coral reefs in the western Atlantic Ocean and Gulf of Mexico.
Such a severe die-off of sea urchins has not been seen in the Caribbean since the 1980s, according to the research group. Scientists warn that the loss of urchins — which help maintain a healthy environment for corals to grow — could be devastating for the broader marine ecosystem.
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