butterfly

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Butterfly demonstration

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Adolf Hitler (Nazi, nazism, German leader).

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Ahura Mazda - relief of the Zoroastrian god Ahura Mazda at the ancient ruins of Persepolis in Iran. Also known as Ormazd Zoroastrianism,

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butterfly: Media

swimming

Videos

Butterfly demonstration

Butterfly demonstration

The butterfly stroke begins with the swimmer's arms moving in a windmill fashion...

Video: Encyclopædia Britannica, Inc.

Images

Michael Phelps

Michael Phelps

American swimmer Michael Phelps competing in the 100-meter butterfly final at the...

Julian Abram Wainwright—EPA/REX/Shutterstock.com