Â Whales are among the world’s most captivating creatures. The humpback whale can grow up to fifty feet in length. The blue whale is a giant that can grow to a length of one hundred feet. Its tongue weighs as much as an elephant! Yet all whales aren’t enormous, and there are many kinds, from the beluga, with its white skin, to the narwhal, with its seven-foot-long tusk. Join Laurence Pringle as he introduces a variety of whales and describes efforts to save these magnificent creatures from extinction. With bold, realistic illustrations by Meryl Henderson, this journey to the undersea world unveils the mysterious world of these mammals in the ocean.