Monthly Archives: July 2017

Signs of Summer 11: More on Bees!

There have been a number of interesting research papers about bees that have been published over the past few months. Scientific teams around the world have been exploring the bacteria that live in bees’ digestive systems, the chemicals that bee … Continue reading

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Signs of Summer 10: Cats as Canaries in Our Coal Mines

Every time I write about cats my email responses go up. Many people love cats and also love to think about their evolution, behaviors, and ecology. I came across a very interesting article in the New York Times a few months … Continue reading

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Signs of Summer 9: When the Kiski River looks like Mountain Dew

Every summer sections of the nearby Kiski (more properly called the “Kiskiminetas”) River turn the chartreuse green of Mountain Dew. This year the color transformation has occurred a month or so earlier than usual. The color reflects some interesting aspects … Continue reading

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Signs of Summer 8: Wild Pigs!

An old friend from Texas was visiting me last week. As we sat on the deck of a Gateway Clipper riverboat and toured the bridges and riversides of Pittsburgh, we talked about old times and old friends and also about … Continue reading

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