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Natural history

Old Mourning Cloak

2007_4_15_Old_Mourning_Cloak_files_shapeimage_2.pngA butterfly that lives 10-12 months, emerging in June. The margins are yellow in younger butterflies and fade to white, so this one is probably from last year. It was sitting on the ground near our campsite at Josephine Saddle in Madera Canyon. We also heard wise old ravens croaking advice that day as we climbed Mt. Wrightson (Sally and I).


About Bill McCallum

I was born in Australia and came to the United States to pursue a Ph. D. in mathematics at Harvard University, met my wife, and never went back. I am a professor at the University of Arizona, working in number theory and mathematics education.


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