Divers found two dead, endangered smalltooth sawfish at the bottom of Amberjack Hole. Scientists have no idea how many "blue holes" exist or where they are most likely to be found. Supplied The benthic lander was deployed to the bottom of Amberjack Hole to collect data and samples. A "blue hole" 30 miles (48 kilometres) off Sarasota – known as "Amberjack Hole" – was explored in 2019. "Blue holes are diverse biological communities full of marine life, including corals, sponges, molluscs, sea turtles, sharks," the organisation says.

Source: Stuff July 24, 2020 00:11 UTC