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Biodiversity? There’s an app for that

On July 16, a female ruby-throated hummingbird drank from a coral honeysuckle flower at the edge of Tacony Creek Park. We know this because an iNaturalist user with the handle “digitalmirage” took a picture of the bird in the moment before it hummed away. “Recently I’ve been obsessed with hummingbirds,” explains Savannah  McHale (a.k.a. digitalmirage), who

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A wildlife center for convalescing animals finds a new home

Abrood of fledgling kestrels—America’s smallest falcons that are adorable even as adults—peer through the front of their cage, which sits at the top of shelves filled with animals on the mend. “These are ones we raised from fallen nestlings,” explains Michele Wellard, assistant director of the Philadelphia Metro Wildlife Center. Wellard is careful to make

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3 mins read
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A Troubled Optimist

There are two letters from readers sitting on my desk, each one tugging at me, competing for my mood and mindset. I may be an optimist, but I’ll start with the more negative of the two. It comes from a reader in Oreland, a response to editor’s notes I had written about the ill-conceived idea

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A job program has former inmates caring for young trees on the Delaware River Greenway

Someday the row of young elm trees will transform this sunbaked stretch of Delaware Avenue, but first they have to survive the next couple years. To the west is the Northeast Water Pollution Control Plant. To the east is a Sanitation Convenience Center (where you can drop off hard-to-dispose-of items like tires and mattresses) and

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A Penn State researcher learns what bees can teach us about urban ecology

An entomological research project might bring to mind expeditions through far-away jungles or at least meadows out in the countryside. It probably doesn’t conjure up an Old City chocolate factory rooftop. But to reach this field site we walked into Shane Confectionery. From there we hiked up the stairs through one of the most delicious-smelling

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Research center launches efforts to aid freshwater bivalves and shad

Racks of tanks with plastic tubes feeding in and out stand against the thick stone walls of the Fairmount Water Works. Together with the microscopes and other lab equipment, it looks like a mad scientist’s underground workshop—that is, until you start reading the cheerful interpretive panels about freshwater mussel restoration. “We’re demonstrating why we care about

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Action Mom: A Resourceful Grandmom Cleans Up

In 2005, Judith Robinson was fed up with the litter and illegal dumping plaguing her North Philadelphia neighborhood. A real estate broker and grandmother of two, Robinson refused to accept the status quo of garbage-filled lots, and she took her concerns to community meetings—as well as into her own hands.First, she noticed groups of teenagers

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Evolutionary biologist Menno Schilthuizen releases new book; to speak at Academy of Natural Sciences

Check any biology textbook for an example of evolution through natural selection, and you’re pretty much guaranteed to read about the finches of the Galapagos Islands. Some have smaller beaks ideal for eating insects. Others have sturdier beaks that crack seeds. As Charles Darwin realized when he visited the Galapagos, all are descended from colonists

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3 mins read
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