Notes on the brain and encephalization quotient of two sperm whales with a synthesis of the literature and indications of a new method of extraction

The sperm whale (<em>Physeter</em> <em>macrocephalus</em>, Linnaeus 1758) possesses the largest brain that ever existed. Relatively few authors have dealt with it and the available descriptions are heterogeneous, with only few data about brain weight or gross anatomy. In fact the central nervous sys... View More