Philly celebrates the nation's 250th with Parkway concert amid extreme heat; attendees seek ways to stay cool

What you should knowPhiladelphia is proceeding with its plan for a seven-hour July Fourth concert on the Parkway to mark the ...

Florida scientists built heated robo-rabbits to flush invasive pythons from hiding

To target one of Florida's most destructive invasive animals, researchers will be deploying realistic "robo-bunny" decoys ...