Penguin described as hailing from the Falklands. Opus was a comical, "existentialist" penguin character in the cartoons "Bloom County", "Outland" and "Opus". He was also the star in the Christmas show "A Wish for Wings That Work". In the mid-2000s, penguins became one of the most publicized species of animals that form lasting homosexual couples. A children's book, "And Tango Makes Three", was written about one such penguin family in the New York Zoo. Penguin Penguins (order Sphenisciformes, family Spheniscidae) are a group of aquatic, flightless birds. They live almost exclusively in the Southern Hemisphere, with only one species, the Galapagos
Evolution of birds evolved into some basic lineages by the end of the Cretaceous (see "Vegavis"). The Neornithes are split into the paleognaths and neognaths. The paleognaths include the tinamous (found only in Central and South America) and the ratites, which nowadays are found almost exclusively on the Southern Hemisphere. The ratites are large flightless birds, and include ostriches, rheas, cassowaries, kiwis and emus. A few scientists propose that the ratites represent an artificial grouping of birds which have independently lost the ability to fly in a number of unrelated lineages. In any case, the available data regarding their evolution is still very