Several whales grunt and scream and all open their huge mouths to enjoy their feast. On average, one humpback eats around 5,000 pounds of plankton, krill and fish a day. The wildlife photographer Duncan Murrell, also named "Whaleman", takes those amazing pictures. To capture images of humpback whales feeding and surging through the surf off Alaska, he often ventures within the giant, fearsome creatures.[chinanews.com.cn]