Toxic red algae blooms in Florida have spread to metropolitan counties on the state's east coast, triggering large-scale beach closures and fears of a plunge in the tourist economy. WEST PALM BEACH, ...

Red algae called Digenea simplex is lining a long stretch of the beach and piling up as high as 4 feet in some areas. The thick, hairy red algae grows in large mats that look a lot like stinky ...

Red tide is caused by high concentrations of a toxin-producing microscopic algae, called K. brevis, that is found in the Gulf of Mexico. Tests conducted Dec. 5 confirmed red tide at Seagate ...

A bioluminescent algae that appears pinkish-red in the day and glows blue when disturbed has appeared across Tasmania's south-eastern coastline. Dr Lisa-ann Gershwin, a biologist and world-leading ...