Another example is the southern rockhopper penguin. Many taxonomists consider all three rockhopper penguin forms subspecies. Gentoo Linux was named after the fast-swimming gentoo penguin. Wheezy is Andy's squeeze toy penguin with a red bow tie. Cape Horn is the southern limit of the range of the Magellanic penguin. A gentoo penguin was observed attempting to have intercourse with a dead penguin in 1921. It has rookeries for the little penguin "Eudyptula minor". Disney's franchising of the brand began with its acquisition of "Club Penguin" in 2007. They also sported special helmets featuring an enlarged silhouette of the "skating penguin" logo. There are also games that are built-in to the Club Penguin Island zones. The Poppers unexpectedly come into possession of a penguin, Captain Cook. The number of extant penguin species is debated. Most species of penguin (Spheniscidae) migrate by swimming. Sinek started Optimism Press, which is an imprint of Penguin Random House. Under the alias of "Emperor Penguin", Ogilvy takes over the Penguin's operations.