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Natural history

Engadine orchid

Orchis Mascula.We saw it on a hike up to the village above Sera Plana. Although it was late summer, there were still beautiful meadows of wildflowers, wild strawberries, butterflies, and a curious large fly with dark blue wings with bright red spots on them.


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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