Snapshot
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New study determines bill size in birds varies according to climate
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Tropical arks reach tipping point
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Two rare Cuban crocodiles born at the National Zoo
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Astronomers release highest-resolution images ever of the Sun’s corona
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Thieving rodents hiding seeds drives continual rejuvination of tropical forests
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Weight of genitals reduces physical endurance in male orb web spiders, researchers find
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Coronal mass ejection from July 12 solar flare headed toward Earth; minor geomagnetic storm activity predicted
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Prehistoric turtle was size and shape of a big car tire
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Coral reef emergency: 2,600 scientists call for worldwide rescue
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Walrus whale 3-D skull scan
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Thomas Jefferson’s Desk