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 oleh Michele Povinelli, Mattia Panin, Sandro Mazzariol, Maristella Giurisato, Cristina Ballarin, Giulia Roncon, Michela Podestà, Massimo Demma, Bruno Cozzi