flying_penguin

1 thought on “flying_penguin

  1. Sorry.

    Murres, which resemble flying penguins, have the highest wing-loading of any bird, which results in exceptionally high flight costs and could explain why Antarctic penguins have evolved flightlessness. Credit: Kyle H. Elliott.
    phys.org/news/2013-05-evidence-birds-gave-flight-swimmers.html

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