More than a dozen great white sharks have been spotted along the Southern California coast, sparking urgent warnings to paddle-boarders to get out of the water.

Wildlife officials have pulled four alligators from a lagoon at Walt Disney World after a two-year-old boy was dragged into the water by an alligator.

A search is under way for a two-year-old boy who was dragged into the water by an alligator near Disney's Grand Floridian Resort and Spa, authorities said.