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The 500-lb. Chicken From Hell

The views expressed are those of the author and are not necessarily those of Scientific American.


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Anzu illustration by Mark Klingler

Source: 500-Pound “Chicken from Hell” Dinosaur Once Roamed North America by Kate Wong at Observations

Illustration credit: Mark Klingler, Carnegie Museum of Natural History

Nothing you could find in any hen house could prepare you for the 11.5-foot tall, 500-lb. behemoth that roamed the landscape 66-million years ago in what is today North and South Dakota. Three fossils from the fossil-rich Hell Creek Formation have been nicknamed the “chicken from hell,” and represent the new species Anzu wyliei. The official word on what these birds looked like and where they spent their days appears in PLOS ONE this week. The unofficial word on the street is that animal activists are already scheming on how to resurrect this long-dead bird to strong-arm hapless chicken farmers into compliance. SQUAWK!

Kalliopi Monoyios About the Author: Kalliopi Monoyios is an independent science illustrator. She has illustrated several popular science books including Neil Shubin's Your Inner Fish and The Universe Within, and Jerry Coyne's Why Evolution is True. Find her at www.kalliopimonoyios.com. Follow on Twitter @symbiartic.

The views expressed are those of the author and are not necessarily those of Scientific American.



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  1. 1. oldjimh 4:51 am 04/4/2014

    Well –

    i remember seeing as a little kid Grandma’s chickens run down and devour a mouse. I decided then and there i was glad chickens do not get very big.
    “Jurassic Park” , anyone ?

    Link to this

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