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
Flightless bird the lineage. This indicates that the distinctive flightless nature of ratites is the result of convergent evolution. Two key differences between flying and flightless birds are the smaller wing bones of flightless birds and the absent (or greatly reduced) keel on their breastbone. (The keel anchors muscles needed for wing movement.) Adapting to a cursorial lifestyle causes two inverse morphological changes to occur in the skeleto-muscular system: the pectoral apparatus used to power flight is paedorphically reduced while peramorphosis leads to enlargement of the pelvic girdle for running. Repeated selection for cursorial traits across ratites suggests these adaptions comprise a