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Encyclopedic overview
Penguins (order Sphenisciformes, family Spheniscidae) are an order of flightless birds living in the southern hemisphere. They are not, contrary to popular belief, only found in cold climates, such as Antarctica. Many species live as far north as the Galapagos Islands and will occasionally cross the equator while feeding.
Excerpted from Wikipedia’s “Category:Spheniscidae” article, available under the CC BY-SA 4.0 licence.