A mysterious sea creature prompted lifeguards to close Boscombe Beach in Bournemouth last week.
A video showing an unidentified animal moving through the water near the shoreline has emerged online.
Real-life clownfish have more in common with their big screen counterpart than was previously believed.
A new species of sea anemone has been found that clings to the underside of Antarctica's ice sheets.
An increase in ocean acidity is making clownfish deaf and vulnerable to predators.