Moby Dick (whale) (larger than any officially recorded sperm whale) and that Moby Dick is possibly the largest sperm whale that ever lived. Ahab tells the crew that the White Whale can be told because it has an unusual spout, a deformed jaw, three punctures in his right fluke and several harpoons embedded in his side from unsuccessful hunts. Yet Ishmael insists that what invested the whale with “natural terror” was that “unexampled, intelligent malignity” which he had shown in his assaults. When he fled before “exalting pursuers,” giving every symptom of alarm, he would suddenly turn round and stave their boats to
Mammal at approximately the ⅔ or ¾ exponent of the body mass. Comparison of a particular animal's brain size with the expected brain size based on such allometric analysis provides an [[encephalization quotient|encephalisation quotient]] that can be used as another indication of animal intelligence. [[Sperm whale]]s have the largest brain mass of any animal on earth, averaging and in mature males. [[Self-awareness]] appears to be a sign of abstract thinking. Self-awareness, although not well-defined, is believed to be a precursor to more advanced processes such as [[metacognition|metacognitive reasoning]]. The traditional method for measuring this is the [[mirror test]], which determines if