Author Archives: hw7

Signs of Summer 10: West Toward Home (Part 1)!

(Click here to listen to a audio version of this blog!) We left Apollo in the early afternoon and drove west in bright sunshine. The air was as warm and humid as you would expect for Western Pennsylvania in late … Continue reading

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Signs of Summer 9: Sit Spots

(Click here to listen to an audio version of this blog!) (Much of this blog was originally published in July, 2013) When you are looking at Nature you see and experience its details inversely proportionally to the speed at which … Continue reading

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Signs of Summer 7: Ancient Ecosystems Underfoot

(Click here to listen to an audio version of this blog!) (Most of this blog was originally published in June 2014) One of the Big Ideas in Biology that has grown clearer and more compelling to me over the years … Continue reading

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Signs of Summer 6: Considering the Passenger Pigeon

(Click here to listen to an audio version of this blog!) The passenger pigeon (Ectopigtes migratorius) is an extinct, North American bird of great legend and mystique.  It resembled in size and markings the still living mourning dove (Zenaida macroura), … Continue reading

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Signs of Summer 5: The Virosphere!

(Click here to listen to an audio version of this blog!) A couple of months ago an old friend and former Penn State colleague sent me an email in which she wrote: “Just wondering if all viruses are bad and … Continue reading

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Signs of Summer 4: Natural History of the American Beech (part 2)

(Click here to listen to an audio version of this blog! (Please note: the Campus Nature Trail at Penn State New Kensington is no longer accessible for hiking. The notes and observations about the trail that are included in this … Continue reading

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Signs of Summer 3: Natural History of the American Beech (part 1)

(Click here to the listen to an audio version of this blog!) (Please note: the Campus Nature Trail at Penn State New Kensington is no longer accessible for hiking. The notes and observations about the trail that are included in … Continue reading

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Signs of Summer 2: The Cavity Nesting Team Year #6!

(Click here to listen to an audio version of this blog!) Over the past six years I have written a number of articles about our Cavity Nesting Team study up at Harrison Hills Park in northern Allegheny County. Each year … Continue reading

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Signs of Summer 1: Short Blogs on Unrelated Topics!

(Click here to listen to an audio version of this blog!) I get ideas for blogs either from my own observations out in nature or from reading about observations in the scientific literature. I keep file folders open on the … Continue reading

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Signs of Spring 13: More on Butterflies (Evolution, Poisons, Rearing)

(Click here to listen to an audio version of this blog!) The evolution of moths and butterflies (the “lepidoptera”) is a topic that is constantly being revised as new evidence is found. It was once widely assumed, for example, that … Continue reading

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