A sperm whale attacking a giant squid. By A. Twidle.
Lettering continues: The sperm whale, though not quite the largest of its tribe, is the principal one from the human point of view, for it is the chief object of the whale fishery. It differs from some whales in having teeth, but as these are in its lower jaw only, it is unable to use them for mastication, though they are useful for catching and cutting up its food. The squid is one of the most important items of the sperm whale's food