Sperm whale of the Society for Marine Mammalogy, the largest international association of marine mammal scientists in the world, officially uses "Physeter macrocephalus" when publishing their definitive list of marine mammal species. The sperm whale is the largest toothed whale, with adult males measuring up to long and weighing up to . By contrast, the second largest toothed whale (Baird's Beaked Whale) measures and weighs up to . The Nantucket Whaling Museum has a -long jawbone. The museum claims that this individual was long; the whale that sank the "Essex" (one of the incidents behind "Moby-Dick") was claimed to be . A
The Brain from Planet Arous brain-shaped creature named Gor (Dale Tate) arrives on Earth and possesses young scientist Steve March (Agar). Gor then proceeds to use his vast, destructive powers to bend the planet to his will, threatening to wipe out the capital city of any nation that dares to defy him. Meanwhile, Vol (Tate), another brain creature from Arous, arrives and eventually inhabits the body of March's fiancee's dog. Vol then explains that Gor is a wanted criminal on their world. His only physical weakness is the fissure of Rolando and Gor is only vulnerable there during the brief period when he needs to