Sperm whale . Myoglobin, which stores oxygen in muscle tissue, is much more abundant than in terrestrial animals. The blood has a high density of red blood cells, which contain oxygen-carrying haemoglobin. The oxygenated blood can be directed towards only the brain and other essential organs when oxygen levels deplete. The spermaceti organ may also play a role by adjusting buoyancy (see below). The arterial retia mirabilia are extraordinarily well-developed. The complex arterial retia mirabilia of the sperm whale are more extensive and larger than those of any other cetacean. Atop the whale's skull is positioned a large complex of organs filled
Alien 2: On Earth for help but getting no answer. She finally stops yelling and sits down in an intersection. Suddenly, text shoots at the screen, warning the audience "You may be next!", implying that the aliens have taken over Earth. The film was released theatrically in Italy on April 11, 1980 as "Alien 2: Sulla Terra" ('"Alien 2: On Earth") and in West Germany on March 19, 1982 as "Alien, die Saat des Grauens kehrt zurück" ("Alien, the Seed of Horror Returns"). The English-dubbed version was released theatrically in a limited way by Cinema Shares International Distribution (which distributed films such as "Creature