OK, so the parents are endangered Galapagos tortoises. The Philadelphia Zoo shared the happy news about its oldest and most famous residents.

Weather forecasters sometimes warn of storms that unleash rains so unusual they are described as 100-year or even 500-year ...

Enjoy the cooler Valley weather while you can, because the year's first 100-degree days could be just around the corner.

Weather forecasters often use terms like "100-year" or "500-year" floods. Here’s what those terms really mean and why these extreme events are happening more frequently.

Dozens of Tucsonans have begun to submit their guesses for when Tucson International Airport would officially record its ...

Known as the hottest place on earth, temperatures in Death Valley regularly soar over 100 degrees, with some summertime days ...