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To save heat and energy, Common Poorwills can dial down their heart rate, breathing, and body temperature for weeks at a time.
Some male hummingbirds have special feathers that audibly vibrate as they zoom around to impress females. Listen here.
Congress voted to block planned barriers at biodiversity hotspots, including the National Butterfly Center. Will the president wall them off anyway?
Scientists aren't sure whether the appearance is a range expansion or a migration mishap. Either way, it's a sign of the species' recovery.