How can you tell a boy penguin from a girl?

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By Paul Johnson

How can you tell a boy penguin from a girl?

There is a reason why all penguins look alike: penguins are not sexually dimorphic. That means all penguins – boys and girls – look the same.

The only way to truly tell the gender of a penguin is by close physical inspection.

Experts can generally guess at the gender of a penguin after watching the behavior of a penguin for a period of time, but it’s just a guess. Not only do male and female penguins look the same, they also both work together doing many of the same activities to protect their eggs and raise their chicks.

So if you have a problem telling boys from girls in the penguin world, don’t worry. There’s a scientific reason for it.

SOURCES:

Brennan, Patricia. Penguins and Other Flightless Birds. Chicago, IL: World Book, Inc, 2002.

Daigle, Evelyne. The World of Penguins. New York, NY: Tundra Books, 2007.

Simon, Seymour. Penguins. New York, NY: Collins, 2007.

SLJ Staff. “And Tango Makes Three’ Tops Most Challenged List, Again.” School Library Journal. April 12, 2011. Accessed: January 30, 2013.

Stamps Showing Emperor Penguin Aptenodyte forsteri.” Theme Birds. Accessed: January 30, 2013.

Stefoff, Rebecca. Penguins. Tarrytown, NY: Marshall Cavendish Benchmark, 2005.

Walsh, Michael. “Scientists Solve the Mystery of Penguins’ Incredibly Fast Underwater Swimming Speed: A Secret Layer of Bubbles.” Daily News. October 20, 2012. Accessed: January 19, 2013.

https://www.nationalgeographic.com/animals/birds/e/emperor-penguin/

https://www.factretriever.com/penguin-facts

http://www.antarctica.gov.au/about-antarctica/wildlife/animals/penguins

http://ocean.si.edu/penguins

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#penguins #birds #canpenguinsfly #CGW #coolgrossweird #besurprised #flocked

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