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Sharks filmed ‘smashing’ sea urchins
What started as a study to better understand how lobsters prey on sea urchins instead discovered sharks also predate on the pest.
What started as a study to better understand how lobsters prey on sea urchins instead discovered sharks also predate on the pest.
The massive network of rocky reefs that lines much of southern Australia’s coastline is a shadowy cold-water underworld dominated by brown seaweeds known as kelp. The Great Southern Reef might not be as visually flamboyant as Australia’s world-famous Great Barrier Reef, with its colourful hard corals and sunlit shallow waters, but its communities of creatures are unlike anything else worldwide.
Cool-water kelp forests are being eaten by tropical species moving south on warming waters.
Scientists call for a name for Australia’s southern temperate reef system.