2013 $1 Polar Animals-Humpback Whale Coloured Frosted Uncirculated Coin. The Humpback Whale's are named after their distinctive body shape and are also recognised by their long pectoral fins. They roam all of the world's oceans except the Mediterranean. Humpback Whales's sieve krill from the sea and also feed on small fish. Mintage unlimited. Please contact Adelaide Exchange Jewellers to find out more on this item.