Scientists Discover 20 New Species in Pacific's "Twilight Zone"

A scientific mission in the Pacific Ocean has discovered 20 new species. Researchers found them in the deep coral reefs of Guam. The team was retrieving special monitoring devices. These had been placed on reefs up to 330 feet (100 meters) below the surface. This deep ocean area receives little sunlight. Scientists call it the mesophotic, or "twilight," zone. The newly identified life includes sea slugs, corals, and crustaceans. Their discovery highlights how much of the deep ocean remains unexplored. Scientists say these deep reefs could be vital climate refuges. As shallow waters warm, some marine life may survive by moving deeper. The findings will help in planning marine protected areas.