It is the gargantuan aircraft that causes delight among plane spotters and is a rare sight indeed - the Beluga XL plane.

A miles-long cluster of dolphins has been filmed leaping and gliding across Carmel Bay off the central coast of California, forming an unusual “super pod” of more than 1,500 of the marine creatures.

A miles-long cluster of dolphins has been filmed, forming an unusual “super pod” of more than 1,500 of the creatures.

A mileslong cluster of dolphins was filmed leaping, gliding and cavorting their way across Carmel Bay on the Central Coast of ...