Pink dolphin appears in U.S. lake

The world's only pink bottlenose dolphins discovered in an inland lake in Louisiana, USA, has become an attraction that conservationists have warned tourists to be left alone.

Charter boat captain Erik Rue, 42, photographed the animal, which is actually an albino, he began to study after mammals first appeared in Calcasieu Lake, a saltwater estuary inland, north Gulf of Mexico in the southwestern U.S..