Rare albino killer whale finally spotted after four years

A rare albino killer whale who scientists feared may have died has been spotted for the first time in four years. The marine mammal, named Iceberg, had not been seen since Spring 2012.

Just one in 10,000 killer whales - also known as orcas - are completely white, and researchers were alarmed by Iceberg's long absence.

He was pictured off the coast of Russia's Kuril Islands by American researcher Erich Hoyt, from the Far East Russia Orca Project (FEROP).