Philly finishes its July 4th concert and fireworks after a lengthy storm delay; city celebrated nation's 250th in extreme heat

What you should knowPhiladelphia's July Fourth concert on the Benjamin Franklin Parkway is slated to resume follow a ...
BBC

Earth

No other mammal can survive colder body temperatures than the Arctic ground squirrel. Its chilly hibernation is inspiring new treatments for heart attacks, stroke, and brain injury. In Fiji in the ...