Cetacea of any animal on earth, averaging and in mature males. The brain to body mass ratio in some odontocetes, such as belugas and narwhals, is second only to humans. In some whales, however, it is less than half that of humans: 0.9% versus 2.1%. The sperm whale ("Physeter macrocephalus") is the largest of all toothed predatory animals and possesses the largest brain. The cetacean skeleton is largely made up of cortical bone, which stabilizes the animal in the water. For this reason, the usual terrestrial compact bones, which are finely woven cancellous bone, are replaced with lighter and more elastic
Bahamut This account is also found in al-Tha'labi's "Qiṣaṣ al-anbīyāʾ", but in that version God forces the whale (Lutīyā) into submission by sending a creature that invaded through its nose and reached its brain; it also claims to be an anecdote on authority of Kaʿb al-Aḥbār (d. 650s A.D.), a convert considered the earliest informant of Jewish-Muslim tradition to Arab writers. Although this is an instances of an Islamic tale that ascribes the origins of earthquakes to the cosmic whale/fish supporting the earth, more familiar beliefs in medieval Islam associate the earthquake with the bull, or with Mount Qaf. Jorge Luis